Home / 85,456,035.38-117,928,865.63-47,779,191.95

Finding the Fourth Proportional to 85,456,035.38, 117,928,865.63 and 47,779,191.95

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Solution

The fourth proportional to 85,456,035.38, 117,928,865.63 and 47,779,191.95 is: 65,935,025.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,456,035.38 : 117,928,865.63 = 47,779,191.95 : x
  2. Step 2: Convert to fraction form
    85,456,035.38/117,928,865.63 = 47,779,191.95/x
  3. Step 3: Cross multiply
    85,456,035.38x = 117,928,865.63 × 47,779,191.95
  4. Step 4: Simplify right side
    85,456,035.38x = 5,634,545,907,381,528
  5. Step 5: Solve for x
    x = 5,634,545,907,381,528/85,456,035.38
  6. Step 6: Final answer
    x = 65,935,025.92

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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.