Home / 743,172,387.24-1,025,607,444.78-408,672,333.72

Finding the Fourth Proportional to 743,172,387.24, 1,025,607,444.78 and 408,672,333.72

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Solution

The fourth proportional to 743,172,387.24, 1,025,607,444.78 and 408,672,333.72 is: 563,984,070.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,172,387.24 : 1,025,607,444.78 = 408,672,333.72 : x
  2. Step 2: Convert to fraction form
    743,172,387.24/1,025,607,444.78 = 408,672,333.72/x
  3. Step 3: Cross multiply
    743,172,387.24x = 1,025,607,444.78 × 408,672,333.72
  4. Step 4: Simplify right side
    743,172,387.24x = 419,137,387,938,848,640
  5. Step 5: Solve for x
    x = 419,137,387,938,848,640/743,172,387.24
  6. Step 6: Final answer
    x = 563,984,070.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.