Home / 977,411,658.60-1,466,117,487.90-287,388,664.20

Finding the Fourth Proportional to 977,411,658.60, 1,466,117,487.90 and 287,388,664.20

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Solution

The fourth proportional to 977,411,658.60, 1,466,117,487.90 and 287,388,664.20 is: 431,082,996.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    977,411,658.60 : 1,466,117,487.90 = 287,388,664.20 : x
  2. Step 2: Convert to fraction form
    977,411,658.60/1,466,117,487.90 = 287,388,664.20/x
  3. Step 3: Cross multiply
    977,411,658.60x = 1,466,117,487.90 × 287,388,664.20
  4. Step 4: Simplify right side
    977,411,658.60x = 421,345,546,407,840,704
  5. Step 5: Solve for x
    x = 421,345,546,407,840,704/977,411,658.60
  6. Step 6: Final answer
    x = 431,082,996.30

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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.