Home / 103,112,896.05-142,298,493.45-56,072,720.73

Finding the Fourth Proportional to 103,112,896.05, 142,298,493.45 and 56,072,720.73

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Solution

The fourth proportional to 103,112,896.05, 142,298,493.45 and 56,072,720.73 is: 77,381,821.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,112,896.05 : 142,298,493.45 = 56,072,720.73 : x
  2. Step 2: Convert to fraction form
    103,112,896.05/142,298,493.45 = 56,072,720.73/x
  3. Step 3: Cross multiply
    103,112,896.05x = 142,298,493.45 × 56,072,720.73
  4. Step 4: Simplify right side
    103,112,896.05x = 7,979,063,683,521,583
  5. Step 5: Solve for x
    x = 7,979,063,683,521,583/103,112,896.05
  6. Step 6: Final answer
    x = 77,381,821.18

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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.