Home / 19,720,601.20-29,580,901.80-6,257,407.60

Finding the Fourth Proportional to 19,720,601.20, 29,580,901.80 and 6,257,407.60

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Solution

The fourth proportional to 19,720,601.20, 29,580,901.80 and 6,257,407.60 is: 9,386,111.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,720,601.20 : 29,580,901.80 = 6,257,407.60 : x
  2. Step 2: Convert to fraction form
    19,720,601.20/29,580,901.80 = 6,257,407.60/x
  3. Step 3: Cross multiply
    19,720,601.20x = 29,580,901.80 × 6,257,407.60
  4. Step 4: Simplify right side
    19,720,601.20x = 185,099,759,738,173.69
  5. Step 5: Solve for x
    x = 185,099,759,738,173.69/19,720,601.20
  6. Step 6: Final answer
    x = 9,386,111.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.