Home / 149,688,221.80-224,532,332.70-85,190,967.40

Finding the Fourth Proportional to 149,688,221.80, 224,532,332.70 and 85,190,967.40

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Solution

The fourth proportional to 149,688,221.80, 224,532,332.70 and 85,190,967.40 is: 127,786,451.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,688,221.80 : 224,532,332.70 = 85,190,967.40 : x
  2. Step 2: Convert to fraction form
    149,688,221.80/224,532,332.70 = 85,190,967.40/x
  3. Step 3: Cross multiply
    149,688,221.80x = 224,532,332.70 × 85,190,967.40
  4. Step 4: Simplify right side
    149,688,221.80x = 19,128,126,635,291,656
  5. Step 5: Solve for x
    x = 19,128,126,635,291,656/149,688,221.80
  6. Step 6: Final answer
    x = 127,786,451.10

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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.