Home / 131,101,302.78-180,919,808.37-72,363,983.04

Finding the Fourth Proportional to 131,101,302.78, 180,919,808.37 and 72,363,983.04

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Solution

The fourth proportional to 131,101,302.78, 180,919,808.37 and 72,363,983.04 is: 99,862,302.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,101,302.78 : 180,919,808.37 = 72,363,983.04 : x
  2. Step 2: Convert to fraction form
    131,101,302.78/180,919,808.37 = 72,363,983.04/x
  3. Step 3: Cross multiply
    131,101,302.78x = 180,919,808.37 × 72,363,983.04
  4. Step 4: Simplify right side
    131,101,302.78x = 13,092,077,944,486,732
  5. Step 5: Solve for x
    x = 13,092,077,944,486,732/131,101,302.78
  6. Step 6: Final answer
    x = 99,862,302.41

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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.