Home / 147,744,005.40-221,616,008.10-139,807,819.80

Finding the Fourth Proportional to 147,744,005.40, 221,616,008.10 and 139,807,819.80

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Solution

The fourth proportional to 147,744,005.40, 221,616,008.10 and 139,807,819.80 is: 209,711,729.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,744,005.40 : 221,616,008.10 = 139,807,819.80 : x
  2. Step 2: Convert to fraction form
    147,744,005.40/221,616,008.10 = 139,807,819.80/x
  3. Step 3: Cross multiply
    147,744,005.40x = 221,616,008.10 × 139,807,819.80
  4. Step 4: Simplify right side
    147,744,005.40x = 30,983,650,925,240,144
  5. Step 5: Solve for x
    x = 30,983,650,925,240,144/147,744,005.40
  6. Step 6: Final answer
    x = 209,711,729.70

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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.