Home / 1,244,290,039.16-1,717,172,420.11-715,654,172.84

Finding the Fourth Proportional to 1,244,290,039.16, 1,717,172,420.11 and 715,654,172.84

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Solution

The fourth proportional to 1,244,290,039.16, 1,717,172,420.11 and 715,654,172.84 is: 987,632,761.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,244,290,039.16 : 1,717,172,420.11 = 715,654,172.84 : x
  2. Step 2: Convert to fraction form
    1,244,290,039.16/1,717,172,420.11 = 715,654,172.84/x
  3. Step 3: Cross multiply
    1,244,290,039.16x = 1,717,172,420.11 × 715,654,172.84
  4. Step 4: Simplify right side
    1,244,290,039.16x = 1,228,901,607,927,108,096
  5. Step 5: Solve for x
    x = 1,228,901,607,927,108,096/1,244,290,039.16
  6. Step 6: Final answer
    x = 987,632,761.86

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Double scale
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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.