Home / 78,888,154.60-118,276,244.70-30,347,252.20

Finding the Fourth Proportional to 78,888,154.60, 118,276,244.70 and 30,347,252.20

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Solution

The fourth proportional to 78,888,154.60, 118,276,244.70 and 30,347,252.20 is: 45,499,340.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,888,154.60 : 118,276,244.70 = 30,347,252.20 : x
  2. Step 2: Convert to fraction form
    78,888,154.60/118,276,244.70 = 30,347,252.20/x
  3. Step 3: Cross multiply
    78,888,154.60x = 118,276,244.70 × 30,347,252.20
  4. Step 4: Simplify right side
    78,888,154.60x = 3,589,359,027,179,813.50
  5. Step 5: Solve for x
    x = 3,589,359,027,179,813.50/78,888,154.60
  6. Step 6: Final answer
    x = 45,499,340.75

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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.