Home / 131,150,712.62-180,988,642.14-72,413,491.34

Finding the Fourth Proportional to 131,150,712.62, 180,988,642.14 and 72,413,491.34

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Solution

The fourth proportional to 131,150,712.62, 180,988,642.14 and 72,413,491.34 is: 99,930,981.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,150,712.62 : 180,988,642.14 = 72,413,491.34 : x
  2. Step 2: Convert to fraction form
    131,150,712.62/180,988,642.14 = 72,413,491.34/x
  3. Step 3: Cross multiply
    131,150,712.62x = 180,988,642.14 × 72,413,491.34
  4. Step 4: Simplify right side
    131,150,712.62x = 13,106,019,470,243,248
  5. Step 5: Solve for x
    x = 13,106,019,470,243,248/131,150,712.62
  6. Step 6: Final answer
    x = 99,930,981.76

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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.