Home / 387,092,308.60-579,681,869.10-256,995,551.80

Finding the Fourth Proportional to 387,092,308.60, 579,681,869.10 and 256,995,551.80

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Solution

The fourth proportional to 387,092,308.60, 579,681,869.10 and 256,995,551.80 is: 384,858,232.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,092,308.60 : 579,681,869.10 = 256,995,551.80 : x
  2. Step 2: Convert to fraction form
    387,092,308.60/579,681,869.10 = 256,995,551.80/x
  3. Step 3: Cross multiply
    387,092,308.60x = 579,681,869.10 × 256,995,551.80
  4. Step 4: Simplify right side
    387,092,308.60x = 148,975,661,817,809,888
  5. Step 5: Solve for x
    x = 148,975,661,817,809,888/387,092,308.60
  6. Step 6: Final answer
    x = 384,858,232.80

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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.