Home / 156,843,031.56-216,449,355.84-87,233,445.96

Finding the Fourth Proportional to 156,843,031.56, 216,449,355.84 and 87,233,445.96

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Solution

The fourth proportional to 156,843,031.56, 216,449,355.84 and 87,233,445.96 is: 120,385,477.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,843,031.56 : 216,449,355.84 = 87,233,445.96 : x
  2. Step 2: Convert to fraction form
    156,843,031.56/216,449,355.84 = 87,233,445.96/x
  3. Step 3: Cross multiply
    156,843,031.56x = 216,449,355.84 × 87,233,445.96
  4. Step 4: Simplify right side
    156,843,031.56x = 18,881,623,185,745,448
  5. Step 5: Solve for x
    x = 18,881,623,185,745,448/156,843,031.56
  6. Step 6: Final answer
    x = 120,385,477.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.