Home / 913,925,431.22-1,261,217,095.08-522,784,855.22

Finding the Fourth Proportional to 913,925,431.22, 1,261,217,095.08 and 522,784,855.22

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Solution

The fourth proportional to 913,925,431.22, 1,261,217,095.08 and 522,784,855.22 is: 721,443,100.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,925,431.22 : 1,261,217,095.08 = 522,784,855.22 : x
  2. Step 2: Convert to fraction form
    913,925,431.22/1,261,217,095.08 = 522,784,855.22/x
  3. Step 3: Cross multiply
    913,925,431.22x = 1,261,217,095.08 × 522,784,855.22
  4. Step 4: Simplify right side
    913,925,431.22x = 659,345,196,452,796,928
  5. Step 5: Solve for x
    x = 659,345,196,452,796,928/913,925,431.22
  6. Step 6: Final answer
    x = 721,443,100.20

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Half scale
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Double scale
Find fourth proportional to 913,925,432.22, 1,261,217,096.46 and 522,784,856.22
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.