Home / 645,789,918.30-968,987,212.65-282,237,035.10

Finding the Fourth Proportional to 645,789,918.30, 968,987,212.65 and 282,237,035.10

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Solution

The fourth proportional to 645,789,918.30, 968,987,212.65 and 282,237,035.10 is: 423,487,685.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,789,918.30 : 968,987,212.65 = 282,237,035.10 : x
  2. Step 2: Convert to fraction form
    645,789,918.30/968,987,212.65 = 282,237,035.10/x
  3. Step 3: Cross multiply
    645,789,918.30x = 968,987,212.65 × 282,237,035.10
  4. Step 4: Simplify right side
    645,789,918.30x = 273,484,077,948,149,216
  5. Step 5: Solve for x
    x = 273,484,077,948,149,216/645,789,918.30
  6. Step 6: Final answer
    x = 423,487,685.70

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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.