Home / 100,039,237.70-138,054,148.05-54,254,149.70

Finding the Fourth Proportional to 100,039,237.70, 138,054,148.05 and 54,254,149.70

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Solution

The fourth proportional to 100,039,237.70, 138,054,148.05 and 54,254,149.70 is: 74,870,726.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,039,237.70 : 138,054,148.05 = 54,254,149.70 : x
  2. Step 2: Convert to fraction form
    100,039,237.70/138,054,148.05 = 54,254,149.70/x
  3. Step 3: Cross multiply
    100,039,237.70x = 138,054,148.05 × 54,254,149.70
  4. Step 4: Simplify right side
    100,039,237.70x = 7,490,010,414,320,393
  5. Step 5: Solve for x
    x = 7,490,010,414,320,393/100,039,237.70
  6. Step 6: Final answer
    x = 74,870,726.60

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.