Home / 812,966,153.15-1,121,893,291.23-460,542,143.87

Finding the Fourth Proportional to 812,966,153.15, 1,121,893,291.23 and 460,542,143.87

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Solution

The fourth proportional to 812,966,153.15, 1,121,893,291.23 and 460,542,143.87 is: 635,548,158.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,966,153.15 : 1,121,893,291.23 = 460,542,143.87 : x
  2. Step 2: Convert to fraction form
    812,966,153.15/1,121,893,291.23 = 460,542,143.87/x
  3. Step 3: Cross multiply
    812,966,153.15x = 1,121,893,291.23 × 460,542,143.87
  4. Step 4: Simplify right side
    812,966,153.15x = 516,679,141,530,825,024
  5. Step 5: Solve for x
    x = 516,679,141,530,825,024/812,966,153.15
  6. Step 6: Final answer
    x = 635,548,158.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.