Home / 1,063,755,864.12-1,468,374,818.46-640,389,203.52

Finding the Fourth Proportional to 1,063,755,864.12, 1,468,374,818.46 and 640,389,203.52

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Solution

The fourth proportional to 1,063,755,864.12, 1,468,374,818.46 and 640,389,203.52 is: 883,972,922.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,063,755,864.12 : 1,468,374,818.46 = 640,389,203.52 : x
  2. Step 2: Convert to fraction form
    1,063,755,864.12/1,468,374,818.46 = 640,389,203.52/x
  3. Step 3: Cross multiply
    1,063,755,864.12x = 1,468,374,818.46 × 640,389,203.52
  4. Step 4: Simplify right side
    1,063,755,864.12x = 940,331,380,462,423,936
  5. Step 5: Solve for x
    x = 940,331,380,462,423,936/1,063,755,864.12
  6. Step 6: Final answer
    x = 883,972,922.90

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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.