Home / 83,047,625.30-124,571,437.95-78,264,656.30

Finding the Fourth Proportional to 83,047,625.30, 124,571,437.95 and 78,264,656.30

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Solution

The fourth proportional to 83,047,625.30, 124,571,437.95 and 78,264,656.30 is: 117,396,984.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,047,625.30 : 124,571,437.95 = 78,264,656.30 : x
  2. Step 2: Convert to fraction form
    83,047,625.30/124,571,437.95 = 78,264,656.30/x
  3. Step 3: Cross multiply
    83,047,625.30x = 124,571,437.95 × 78,264,656.30
  4. Step 4: Simplify right side
    83,047,625.30x = 9,749,540,775,953,526
  5. Step 5: Solve for x
    x = 9,749,540,775,953,526/83,047,625.30
  6. Step 6: Final answer
    x = 117,396,984.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.