Home / 1,121,997,840.92-1,548,327,319.14-626,964,617.24

Finding the Fourth Proportional to 1,121,997,840.92, 1,548,327,319.14 and 626,964,617.24

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Solution

The fourth proportional to 1,121,997,840.92, 1,548,327,319.14 and 626,964,617.24 is: 865,194,574.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,121,997,840.92 : 1,548,327,319.14 = 626,964,617.24 : x
  2. Step 2: Convert to fraction form
    1,121,997,840.92/1,548,327,319.14 = 626,964,617.24/x
  3. Step 3: Cross multiply
    1,121,997,840.92x = 1,548,327,319.14 × 626,964,617.24
  4. Step 4: Simplify right side
    1,121,997,840.92x = 970,746,445,006,845,568
  5. Step 5: Solve for x
    x = 970,746,445,006,845,568/1,121,997,840.92
  6. Step 6: Final answer
    x = 865,194,574.89

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Double scale
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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.