Home / 191,488,879.60-286,820,752.74-129,739,240.78

Finding the Fourth Proportional to 191,488,879.60, 286,820,752.74 and 129,739,240.78

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Solution

The fourth proportional to 191,488,879.60, 286,820,752.74 and 129,739,240.78 is: 194,329,335.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,488,879.60 : 286,820,752.74 = 129,739,240.78 : x
  2. Step 2: Convert to fraction form
    191,488,879.60/286,820,752.74 = 129,739,240.78/x
  3. Step 3: Cross multiply
    191,488,879.60x = 286,820,752.74 × 129,739,240.78
  4. Step 4: Simplify right side
    191,488,879.60x = 37,211,906,700,435,704
  5. Step 5: Solve for x
    x = 37,211,906,700,435,704/191,488,879.60
  6. Step 6: Final answer
    x = 194,329,335.35

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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.