Home / 149,688,220.80-224,532,331.20-85,190,966.40

Finding the Fourth Proportional to 149,688,220.80, 224,532,331.20 and 85,190,966.40

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Solution

The fourth proportional to 149,688,220.80, 224,532,331.20 and 85,190,966.40 is: 127,786,449.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,688,220.80 : 224,532,331.20 = 85,190,966.40 : x
  2. Step 2: Convert to fraction form
    149,688,220.80/224,532,331.20 = 85,190,966.40/x
  3. Step 3: Cross multiply
    149,688,220.80x = 224,532,331.20 × 85,190,966.40
  4. Step 4: Simplify right side
    149,688,220.80x = 19,128,126,282,972,872
  5. Step 5: Solve for x
    x = 19,128,126,282,972,872/149,688,220.80
  6. Step 6: Final answer
    x = 127,786,449.60

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1.5x scale

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.