Home / 78,179,570.94-107,897,376.12-45,139,764.59

Finding the Fourth Proportional to 78,179,570.94, 107,897,376.12 and 45,139,764.59

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Solution

The fourth proportional to 78,179,570.94, 107,897,376.12 and 45,139,764.59 is: 62,298,399.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,179,570.94 : 107,897,376.12 = 45,139,764.59 : x
  2. Step 2: Convert to fraction form
    78,179,570.94/107,897,376.12 = 45,139,764.59/x
  3. Step 3: Cross multiply
    78,179,570.94x = 107,897,376.12 × 45,139,764.59
  4. Step 4: Simplify right side
    78,179,570.94x = 4,870,462,158,491,842
  5. Step 5: Solve for x
    x = 4,870,462,158,491,842/78,179,570.94
  6. Step 6: Final answer
    x = 62,298,399.70

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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.