Home / 387,097,006.40-580,645,509.60-223,838,331.20

Finding the Fourth Proportional to 387,097,006.40, 580,645,509.60 and 223,838,331.20

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Solution

The fourth proportional to 387,097,006.40, 580,645,509.60 and 223,838,331.20 is: 335,757,496.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,097,006.40 : 580,645,509.60 = 223,838,331.20 : x
  2. Step 2: Convert to fraction form
    387,097,006.40/580,645,509.60 = 223,838,331.20/x
  3. Step 3: Cross multiply
    387,097,006.40x = 580,645,509.60 × 223,838,331.20
  4. Step 4: Simplify right side
    387,097,006.40x = 129,970,721,887,637,584
  5. Step 5: Solve for x
    x = 129,970,721,887,637,584/387,097,006.40
  6. Step 6: Final answer
    x = 335,757,496.80

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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.