Home / 497,607,625.50-686,613,492.63-288,715,883.10

Finding the Fourth Proportional to 497,607,625.50, 686,613,492.63 and 288,715,883.10

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Solution

The fourth proportional to 497,607,625.50, 686,613,492.63 and 288,715,883.10 is: 398,378,583.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,607,625.50 : 686,613,492.63 = 288,715,883.10 : x
  2. Step 2: Convert to fraction form
    497,607,625.50/686,613,492.63 = 288,715,883.10/x
  3. Step 3: Cross multiply
    497,607,625.50x = 686,613,492.63 × 288,715,883.10
  4. Step 4: Simplify right side
    497,607,625.50x = 198,236,220,873,045,792
  5. Step 5: Solve for x
    x = 198,236,220,873,045,792/497,607,625.50
  6. Step 6: Final answer
    x = 398,378,583.27

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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.