Home / 497,607,624-686,613,490.56-288,715,881.60

Finding the Fourth Proportional to 497,607,624, 686,613,490.56 and 288,715,881.60

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Solution

The fourth proportional to 497,607,624, 686,613,490.56 and 288,715,881.60 is: 398,378,581.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,607,624 : 686,613,490.56 = 288,715,881.60 : x
  2. Step 2: Convert to fraction form
    497,607,624/686,613,490.56 = 288,715,881.60/x
  3. Step 3: Cross multiply
    497,607,624x = 686,613,490.56 × 288,715,881.60
  4. Step 4: Simplify right side
    497,607,624x = 198,236,219,245,483,680
  5. Step 5: Solve for x
    x = 198,236,219,245,483,680/497,607,624
  6. Step 6: Final answer
    x = 398,378,581.20

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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.