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Finding the Fourth Proportional to 651,648,655.40, 977,472,983.10 and 361,411,010.60

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Solution

The fourth proportional to 651,648,655.40, 977,472,983.10 and 361,411,010.60 is: 542,116,515.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,648,655.40 : 977,472,983.10 = 361,411,010.60 : x
  2. Step 2: Convert to fraction form
    651,648,655.40/977,472,983.10 = 361,411,010.60/x
  3. Step 3: Cross multiply
    651,648,655.40x = 977,472,983.10 × 361,411,010.60
  4. Step 4: Simplify right side
    651,648,655.40x = 353,269,498,656,367,744
  5. Step 5: Solve for x
    x = 353,269,498,656,367,744/651,648,655.40
  6. Step 6: Final answer
    x = 542,116,515.90

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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.