Home / 129,041,375.52-193,782,979.44-86,185,973.28

Finding the Fourth Proportional to 129,041,375.52, 193,782,979.44 and 86,185,973.28

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Solution

The fourth proportional to 129,041,375.52, 193,782,979.44 and 86,185,973.28 is: 129,426,508.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,041,375.52 : 193,782,979.44 = 86,185,973.28 : x
  2. Step 2: Convert to fraction form
    129,041,375.52/193,782,979.44 = 86,185,973.28/x
  3. Step 3: Cross multiply
    129,041,375.52x = 193,782,979.44 × 86,185,973.28
  4. Step 4: Simplify right side
    129,041,375.52x = 16,701,374,688,134,630
  5. Step 5: Solve for x
    x = 16,701,374,688,134,630/129,041,375.52
  6. Step 6: Final answer
    x = 129,426,508.52

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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.