Home / 147,987,509.40-221,981,264.10-145,436,592.60

Finding the Fourth Proportional to 147,987,509.40, 221,981,264.10 and 145,436,592.60

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Solution

The fourth proportional to 147,987,509.40, 221,981,264.10 and 145,436,592.60 is: 218,154,888.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,987,509.40 : 221,981,264.10 = 145,436,592.60 : x
  2. Step 2: Convert to fraction form
    147,987,509.40/221,981,264.10 = 145,436,592.60/x
  3. Step 3: Cross multiply
    147,987,509.40x = 221,981,264.10 × 145,436,592.60
  4. Step 4: Simplify right side
    147,987,509.40x = 32,284,198,671,744,704
  5. Step 5: Solve for x
    x = 32,284,198,671,744,704/147,987,509.40
  6. Step 6: Final answer
    x = 218,154,888.90

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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.