Home / 521,520,780,017.15-782,281,170,025.73-501,684,850,980.35

Finding the Fourth Proportional to 521,520,780,017.15, 782,281,170,025.73 and 501,684,850,980.35

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Solution

The fourth proportional to 521,520,780,017.15, 782,281,170,025.73 and 501,684,850,980.35 is: 752,527,276,470.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,520,780,017.15 : 782,281,170,025.73 = 501,684,850,980.35 : x
  2. Step 2: Convert to fraction form
    521,520,780,017.15/782,281,170,025.73 = 501,684,850,980.35/x
  3. Step 3: Cross multiply
    521,520,780,017.15x = 782,281,170,025.73 × 501,684,850,980.35
  4. Step 4: Simplify right side
    521,520,780,017.15x = 392,458,612,209,092,153,835,520
  5. Step 5: Solve for x
    x = 392,458,612,209,092,153,835,520/521,520,780,017.15
  6. Step 6: Final answer
    x = 752,527,276,470.53

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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.