Home / 913,925,431-1,261,217,094.78-522,784,855

Finding the Fourth Proportional to 913,925,431, 1,261,217,094.78 and 522,784,855

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Solution

The fourth proportional to 913,925,431, 1,261,217,094.78 and 522,784,855 is: 721,443,099.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,925,431 : 1,261,217,094.78 = 522,784,855 : x
  2. Step 2: Convert to fraction form
    913,925,431/1,261,217,094.78 = 522,784,855/x
  3. Step 3: Cross multiply
    913,925,431x = 1,261,217,094.78 × 522,784,855
  4. Step 4: Simplify right side
    913,925,431x = 659,345,196,018,083,584
  5. Step 5: Solve for x
    x = 659,345,196,018,083,584/913,925,431
  6. Step 6: Final answer
    x = 721,443,099.90

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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.