Home / 98,415,660.80-147,623,491.20-72,906,492.80

Finding the Fourth Proportional to 98,415,660.80, 147,623,491.20 and 72,906,492.80

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Solution

The fourth proportional to 98,415,660.80, 147,623,491.20 and 72,906,492.80 is: 109,359,739.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,415,660.80 : 147,623,491.20 = 72,906,492.80 : x
  2. Step 2: Convert to fraction form
    98,415,660.80/147,623,491.20 = 72,906,492.80/x
  3. Step 3: Cross multiply
    98,415,660.80x = 147,623,491.20 × 72,906,492.80
  4. Step 4: Simplify right side
    98,415,660.80x = 10,762,710,998,283,662
  5. Step 5: Solve for x
    x = 10,762,710,998,283,662/98,415,660.80
  6. Step 6: Final answer
    x = 109,359,739.20

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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.