Home / 98,415,680.40-147,623,520.60-72,906,512.40

Finding the Fourth Proportional to 98,415,680.40, 147,623,520.60 and 72,906,512.40

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Solution

The fourth proportional to 98,415,680.40, 147,623,520.60 and 72,906,512.40 is: 109,359,768.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,415,680.40 : 147,623,520.60 = 72,906,512.40 : x
  2. Step 2: Convert to fraction form
    98,415,680.40/147,623,520.60 = 72,906,512.40/x
  3. Step 3: Cross multiply
    98,415,680.40x = 147,623,520.60 × 72,906,512.40
  4. Step 4: Simplify right side
    98,415,680.40x = 10,762,716,035,155,556
  5. Step 5: Solve for x
    x = 10,762,716,035,155,556/98,415,680.40
  6. Step 6: Final answer
    x = 109,359,768.60

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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.