Home / 78,888,153.60-118,276,243.20-30,347,251.20

Finding the Fourth Proportional to 78,888,153.60, 118,276,243.20 and 30,347,251.20

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Solution

The fourth proportional to 78,888,153.60, 118,276,243.20 and 30,347,251.20 is: 45,499,339.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,888,153.60 : 118,276,243.20 = 30,347,251.20 : x
  2. Step 2: Convert to fraction form
    78,888,153.60/118,276,243.20 = 30,347,251.20/x
  3. Step 3: Cross multiply
    78,888,153.60x = 118,276,243.20 × 30,347,251.20
  4. Step 4: Simplify right side
    78,888,153.60x = 3,589,358,863,382,692
  5. Step 5: Solve for x
    x = 3,589,358,863,382,692/78,888,153.60
  6. Step 6: Final answer
    x = 45,499,339.25

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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.