Home / 85,456,034.88-117,928,864.95-47,779,191.45

Finding the Fourth Proportional to 85,456,034.88, 117,928,864.95 and 47,779,191.45

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Solution

The fourth proportional to 85,456,034.88, 117,928,864.95 and 47,779,191.45 is: 65,935,025.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,456,034.88 : 117,928,864.95 = 47,779,191.45 : x
  2. Step 2: Convert to fraction form
    85,456,034.88/117,928,864.95 = 47,779,191.45/x
  3. Step 3: Cross multiply
    85,456,034.88x = 117,928,864.95 × 47,779,191.45
  4. Step 4: Simplify right side
    85,456,034.88x = 5,634,545,815,688,349
  5. Step 5: Solve for x
    x = 5,634,545,815,688,349/85,456,034.88
  6. Step 6: Final answer
    x = 65,935,025.23

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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.