Home / 103,412,011.20-142,708,540.74-57,003,040.14

Finding the Fourth Proportional to 103,412,011.20, 142,708,540.74 and 57,003,040.14

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Solution

The fourth proportional to 103,412,011.20, 142,708,540.74 and 57,003,040.14 is: 78,664,176.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,412,011.20 : 142,708,540.74 = 57,003,040.14 : x
  2. Step 2: Convert to fraction form
    103,412,011.20/142,708,540.74 = 57,003,040.14/x
  3. Step 3: Cross multiply
    103,412,011.20x = 142,708,540.74 × 57,003,040.14
  4. Step 4: Simplify right side
    103,412,011.20x = 8,134,820,676,123,046
  5. Step 5: Solve for x
    x = 8,134,820,676,123,046/103,412,011.20
  6. Step 6: Final answer
    x = 78,664,176.26

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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.