Home / 478,336,204.16-660,103,956.26-258,319,630.16

Finding the Fourth Proportional to 478,336,204.16, 660,103,956.26 and 258,319,630.16

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Solution

The fourth proportional to 478,336,204.16, 660,103,956.26 and 258,319,630.16 is: 356,481,086.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,336,204.16 : 660,103,956.26 = 258,319,630.16 : x
  2. Step 2: Convert to fraction form
    478,336,204.16/660,103,956.26 = 258,319,630.16/x
  3. Step 3: Cross multiply
    478,336,204.16x = 660,103,956.26 × 258,319,630.16
  4. Step 4: Simplify right side
    478,336,204.16x = 170,517,809,850,804,384
  5. Step 5: Solve for x
    x = 170,517,809,850,804,384/478,336,204.16
  6. Step 6: Final answer
    x = 356,481,086.66

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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.