Home / 85,456,034.13-117,928,863.91-47,779,190.70

Finding the Fourth Proportional to 85,456,034.13, 117,928,863.91 and 47,779,190.70

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Solution

The fourth proportional to 85,456,034.13, 117,928,863.91 and 47,779,190.70 is: 65,935,024.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,456,034.13 : 117,928,863.91 = 47,779,190.70 : x
  2. Step 2: Convert to fraction form
    85,456,034.13/117,928,863.91 = 47,779,190.70/x
  3. Step 3: Cross multiply
    85,456,034.13x = 117,928,863.91 × 47,779,190.70
  4. Step 4: Simplify right side
    85,456,034.13x = 5,634,545,677,790,238
  5. Step 5: Solve for x
    x = 5,634,545,677,790,238/85,456,034.13
  6. Step 6: Final answer
    x = 65,935,024.19

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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.