Home / 747,339,781.80-1,121,009,672.70-436,127,932.20

Finding the Fourth Proportional to 747,339,781.80, 1,121,009,672.70 and 436,127,932.20

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Solution

The fourth proportional to 747,339,781.80, 1,121,009,672.70 and 436,127,932.20 is: 654,191,898.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,339,781.80 : 1,121,009,672.70 = 436,127,932.20 : x
  2. Step 2: Convert to fraction form
    747,339,781.80/1,121,009,672.70 = 436,127,932.20/x
  3. Step 3: Cross multiply
    747,339,781.80x = 1,121,009,672.70 × 436,127,932.20
  4. Step 4: Simplify right side
    747,339,781.80x = 488,903,630,530,849,792
  5. Step 5: Solve for x
    x = 488,903,630,530,849,792/747,339,781.80
  6. Step 6: Final answer
    x = 654,191,898.30

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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.