Home / 130,195,737-179,675,715.78-72,248,985

Finding the Fourth Proportional to 130,195,737, 179,675,715.78 and 72,248,985

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Solution

The fourth proportional to 130,195,737, 179,675,715.78 and 72,248,985 is: 99,706,706.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,195,737 : 179,675,715.78 = 72,248,985 : x
  2. Step 2: Convert to fraction form
    130,195,737/179,675,715.78 = 72,248,985/x
  3. Step 3: Cross multiply
    130,195,737x = 179,675,715.78 × 72,248,985
  4. Step 4: Simplify right side
    130,195,737x = 12,981,388,094,253,484
  5. Step 5: Solve for x
    x = 12,981,388,094,253,484/130,195,737
  6. Step 6: Final answer
    x = 99,706,706.17

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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.