Home / 991,654,053.28-1,488,413,025.20-519,292,139.92

Finding the Fourth Proportional to 991,654,053.28, 1,488,413,025.20 and 519,292,139.92

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Solution

The fourth proportional to 991,654,053.28, 1,488,413,025.20 and 519,292,139.92 is: 779,426,234.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,654,053.28 : 1,488,413,025.20 = 519,292,139.92 : x
  2. Step 2: Convert to fraction form
    991,654,053.28/1,488,413,025.20 = 519,292,139.92/x
  3. Step 3: Cross multiply
    991,654,053.28x = 1,488,413,025.20 × 519,292,139.92
  4. Step 4: Simplify right side
    991,654,053.28x = 772,921,184,940,908,928
  5. Step 5: Solve for x
    x = 772,921,184,940,908,928/991,654,053.28
  6. Step 6: Final answer
    x = 779,426,234.77

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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.