Home / 209,114,438.20-313,671,657.30-72,754,502.20

Finding the Fourth Proportional to 209,114,438.20, 313,671,657.30 and 72,754,502.20

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Solution

The fourth proportional to 209,114,438.20, 313,671,657.30 and 72,754,502.20 is: 109,131,753.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,114,438.20 : 313,671,657.30 = 72,754,502.20 : x
  2. Step 2: Convert to fraction form
    209,114,438.20/313,671,657.30 = 72,754,502.20/x
  3. Step 3: Cross multiply
    209,114,438.20x = 313,671,657.30 × 72,754,502.20
  4. Step 4: Simplify right side
    209,114,438.20x = 22,821,025,281,110,496
  5. Step 5: Solve for x
    x = 22,821,025,281,110,496/209,114,438.20
  6. Step 6: Final answer
    x = 109,131,753.30

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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.