Home / 56,918,823.15-78,548,002.38-30,813,340.95

Finding the Fourth Proportional to 56,918,823.15, 78,548,002.38 and 30,813,340.95

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Solution

The fourth proportional to 56,918,823.15, 78,548,002.38 and 30,813,340.95 is: 42,522,424.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,918,823.15 : 78,548,002.38 = 30,813,340.95 : x
  2. Step 2: Convert to fraction form
    56,918,823.15/78,548,002.38 = 30,813,340.95/x
  3. Step 3: Cross multiply
    56,918,823.15x = 78,548,002.38 × 30,813,340.95
  4. Step 4: Simplify right side
    56,918,823.15x = 2,420,326,378,276,351.50
  5. Step 5: Solve for x
    x = 2,420,326,378,276,351.50/56,918,823.15
  6. Step 6: Final answer
    x = 42,522,424.82

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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.