Home / 478,797,583.57-660,740,366.88-258,781,009.57

Finding the Fourth Proportional to 478,797,583.57, 660,740,366.88 and 258,781,009.57

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Solution

The fourth proportional to 478,797,583.57, 660,740,366.88 and 258,781,009.57 is: 357,117,631.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,797,583.57 : 660,740,366.88 = 258,781,009.57 : x
  2. Step 2: Convert to fraction form
    478,797,583.57/660,740,366.88 = 258,781,009.57/x
  3. Step 3: Cross multiply
    478,797,583.57x = 660,740,366.88 × 258,781,009.57
  4. Step 4: Simplify right side
    478,797,583.57x = 170,987,059,203,206,720
  5. Step 5: Solve for x
    x = 170,987,059,203,206,720/478,797,583.57
  6. Step 6: Final answer
    x = 357,117,631.90

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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.