Home / 131,239,420,168.61-181,139,535,576.08-79,787,047,045.20

Finding the Fourth Proportional to 131,239,420,168.61, 181,139,535,576.08 and 79,787,047,045.20

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Solution

The fourth proportional to 131,239,420,168.61, 181,139,535,576.08 and 79,787,047,045.20 is: 110,123,838,006.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,239,420,168.61 : 181,139,535,576.08 = 79,787,047,045.20 : x
  2. Step 2: Convert to fraction form
    131,239,420,168.61/181,139,535,576.08 = 79,787,047,045.20/x
  3. Step 3: Cross multiply
    131,239,420,168.61x = 181,139,535,576.08 × 79,787,047,045.20
  4. Step 4: Simplify right side
    131,239,420,168.61x = 14,452,588,646,754,372,550,656
  5. Step 5: Solve for x
    x = 14,452,588,646,754,372,550,656/131,239,420,168.61
  6. Step 6: Final answer
    x = 110,123,838,006.80

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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.