Home / 485,112,010.10-727,668,015.15-193,835,102.90

Finding the Fourth Proportional to 485,112,010.10, 727,668,015.15 and 193,835,102.90

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Solution

The fourth proportional to 485,112,010.10, 727,668,015.15 and 193,835,102.90 is: 290,752,654.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,112,010.10 : 727,668,015.15 = 193,835,102.90 : x
  2. Step 2: Convert to fraction form
    485,112,010.10/727,668,015.15 = 193,835,102.90/x
  3. Step 3: Cross multiply
    485,112,010.10x = 727,668,015.15 × 193,835,102.90
  4. Step 4: Simplify right side
    485,112,010.10x = 141,047,604,593,639,008
  5. Step 5: Solve for x
    x = 141,047,604,593,639,008/485,112,010.10
  6. Step 6: Final answer
    x = 290,752,654.35

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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.