Home / 287,518,117.17-431,123,737.14-149,204,462.34

Finding the Fourth Proportional to 287,518,117.17, 431,123,737.14 and 149,204,462.34

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Solution

The fourth proportional to 287,518,117.17, 431,123,737.14 and 149,204,462.34 is: 223,727,068.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,518,117.17 : 431,123,737.14 = 149,204,462.34 : x
  2. Step 2: Convert to fraction form
    287,518,117.17/431,123,737.14 = 149,204,462.34/x
  3. Step 3: Cross multiply
    287,518,117.17x = 431,123,737.14 × 149,204,462.34
  4. Step 4: Simplify right side
    287,518,117.17x = 64,325,585,401,985,192
  5. Step 5: Solve for x
    x = 64,325,585,401,985,192/287,518,117.17
  6. Step 6: Final answer
    x = 223,727,068.18

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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.