Home / 98,415,080.80-147,622,621.20-72,905,912.80

Finding the Fourth Proportional to 98,415,080.80, 147,622,621.20 and 72,905,912.80

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Solution

The fourth proportional to 98,415,080.80, 147,622,621.20 and 72,905,912.80 is: 109,358,869.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,415,080.80 : 147,622,621.20 = 72,905,912.80 : x
  2. Step 2: Convert to fraction form
    98,415,080.80/147,622,621.20 = 72,905,912.80/x
  3. Step 3: Cross multiply
    98,415,080.80x = 147,622,621.20 × 72,905,912.80
  4. Step 4: Simplify right side
    98,415,080.80x = 10,762,561,948,514,630
  5. Step 5: Solve for x
    x = 10,762,561,948,514,630/98,415,080.80
  6. Step 6: Final answer
    x = 109,358,869.20

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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.