Home / 129,326,534.20-193,989,801.30-83,410,031.80

Finding the Fourth Proportional to 129,326,534.20, 193,989,801.30 and 83,410,031.80

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Solution

The fourth proportional to 129,326,534.20, 193,989,801.30 and 83,410,031.80 is: 125,115,047.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,326,534.20 : 193,989,801.30 = 83,410,031.80 : x
  2. Step 2: Convert to fraction form
    129,326,534.20/193,989,801.30 = 83,410,031.80/x
  3. Step 3: Cross multiply
    129,326,534.20x = 193,989,801.30 × 83,410,031.80
  4. Step 4: Simplify right side
    129,326,534.20x = 16,180,695,495,308,682
  5. Step 5: Solve for x
    x = 16,180,695,495,308,682/129,326,534.20
  6. Step 6: Final answer
    x = 125,115,047.70

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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.