Home / 510,208,276.50-704,109,718.46-287,204,347.98

Finding the Fourth Proportional to 510,208,276.50, 704,109,718.46 and 287,204,347.98

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Solution

The fourth proportional to 510,208,276.50, 704,109,718.46 and 287,204,347.98 is: 396,354,551.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,208,276.50 : 704,109,718.46 = 287,204,347.98 : x
  2. Step 2: Convert to fraction form
    510,208,276.50/704,109,718.46 = 287,204,347.98/x
  3. Step 3: Cross multiply
    510,208,276.50x = 704,109,718.46 × 287,204,347.98
  4. Step 4: Simplify right side
    510,208,276.50x = 202,223,372,597,403,680
  5. Step 5: Solve for x
    x = 202,223,372,597,403,680/510,208,276.50
  6. Step 6: Final answer
    x = 396,354,551.49

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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.