Home / 812,966,153.90-1,121,893,292.27-460,542,144.62

Finding the Fourth Proportional to 812,966,153.90, 1,121,893,292.27 and 460,542,144.62

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Solution

The fourth proportional to 812,966,153.90, 1,121,893,292.27 and 460,542,144.62 is: 635,548,159.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,966,153.90 : 1,121,893,292.27 = 460,542,144.62 : x
  2. Step 2: Convert to fraction form
    812,966,153.90/1,121,893,292.27 = 460,542,144.62/x
  3. Step 3: Cross multiply
    812,966,153.90x = 1,121,893,292.27 × 460,542,144.62
  4. Step 4: Simplify right side
    812,966,153.90x = 516,679,142,848,906,176
  5. Step 5: Solve for x
    x = 516,679,142,848,906,176/812,966,153.90
  6. Step 6: Final answer
    x = 635,548,159.51

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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.