Home / 128,725,000.80-193,087,501.20-43,624,456.80

Finding the Fourth Proportional to 128,725,000.80, 193,087,501.20 and 43,624,456.80

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Solution

The fourth proportional to 128,725,000.80, 193,087,501.20 and 43,624,456.80 is: 65,436,685.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,725,000.80 : 193,087,501.20 = 43,624,456.80 : x
  2. Step 2: Convert to fraction form
    128,725,000.80/193,087,501.20 = 43,624,456.80/x
  3. Step 3: Cross multiply
    128,725,000.80x = 193,087,501.20 × 43,624,456.80
  4. Step 4: Simplify right side
    128,725,000.80x = 8,423,337,354,719,347
  5. Step 5: Solve for x
    x = 8,423,337,354,719,347/128,725,000.80
  6. Step 6: Final answer
    x = 65,436,685.20

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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.