Home / 928,127,657.16-1,280,502,379.62-526,198,287.78

Finding the Fourth Proportional to 928,127,657.16, 1,280,502,379.62 and 526,198,287.78

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Solution

The fourth proportional to 928,127,657.16, 1,280,502,379.62 and 526,198,287.78 is: 725,975,736.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    928,127,657.16 : 1,280,502,379.62 = 526,198,287.78 : x
  2. Step 2: Convert to fraction form
    928,127,657.16/1,280,502,379.62 = 526,198,287.78/x
  3. Step 3: Cross multiply
    928,127,657.16x = 1,280,502,379.62 × 526,198,287.78
  4. Step 4: Simplify right side
    928,127,657.16x = 673,798,159,654,259,456
  5. Step 5: Solve for x
    x = 673,798,159,654,259,456/928,127,657.16
  6. Step 6: Final answer
    x = 725,975,736.70

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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.