Home / 314,938,166.10-472,407,249.15-287,728,386.90

Finding the Fourth Proportional to 314,938,166.10, 472,407,249.15 and 287,728,386.90

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Solution

The fourth proportional to 314,938,166.10, 472,407,249.15 and 287,728,386.90 is: 431,592,580.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,938,166.10 : 472,407,249.15 = 287,728,386.90 : x
  2. Step 2: Convert to fraction form
    314,938,166.10/472,407,249.15 = 287,728,386.90/x
  3. Step 3: Cross multiply
    314,938,166.10x = 472,407,249.15 × 287,728,386.90
  4. Step 4: Simplify right side
    314,938,166.10x = 135,924,975,757,795,872
  5. Step 5: Solve for x
    x = 135,924,975,757,795,872/314,938,166.10
  6. Step 6: Final answer
    x = 431,592,580.35

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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.