Home / 485,105,117.10-727,657,675.65-193,828,209.90

Finding the Fourth Proportional to 485,105,117.10, 727,657,675.65 and 193,828,209.90

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Solution

The fourth proportional to 485,105,117.10, 727,657,675.65 and 193,828,209.90 is: 290,742,314.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,105,117.10 : 727,657,675.65 = 193,828,209.90 : x
  2. Step 2: Convert to fraction form
    485,105,117.10/727,657,675.65 = 193,828,209.90/x
  3. Step 3: Cross multiply
    485,105,117.10x = 727,657,675.65 × 193,828,209.90
  4. Step 4: Simplify right side
    485,105,117.10x = 141,040,584,691,234,320
  5. Step 5: Solve for x
    x = 141,040,584,691,234,320/485,105,117.10
  6. Step 6: Final answer
    x = 290,742,314.85

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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.