Home / 520,336,365.43-780,192,762.19-165,657,365.95

Finding the Fourth Proportional to 520,336,365.43, 780,192,762.19 and 165,657,365.95

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Solution

The fourth proportional to 520,336,365.43, 780,192,762.19 and 165,657,365.95 is: 248,386,786.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,336,365.43 : 780,192,762.19 = 165,657,365.95 : x
  2. Step 2: Convert to fraction form
    520,336,365.43/780,192,762.19 = 165,657,365.95/x
  3. Step 3: Cross multiply
    520,336,365.43x = 780,192,762.19 × 165,657,365.95
  4. Step 4: Simplify right side
    520,336,365.43x = 129,244,677,917,650,160
  5. Step 5: Solve for x
    x = 129,244,677,917,650,160/520,336,365.43
  6. Step 6: Final answer
    x = 248,386,786.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.