Home / 485,017,499.70-727,515,745.30-135,254,235.17

Finding the Fourth Proportional to 485,017,499.70, 727,515,745.30 and 135,254,235.17

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Solution

The fourth proportional to 485,017,499.70, 727,515,745.30 and 135,254,235.17 is: 202,878,423.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,017,499.70 : 727,515,745.30 = 135,254,235.17 : x
  2. Step 2: Convert to fraction form
    485,017,499.70/727,515,745.30 = 135,254,235.17/x
  3. Step 3: Cross multiply
    485,017,499.70x = 727,515,745.30 × 135,254,235.17
  4. Step 4: Simplify right side
    485,017,499.70x = 98,399,585,706,671,888
  5. Step 5: Solve for x
    x = 98,399,585,706,671,888/485,017,499.70
  6. Step 6: Final answer
    x = 202,878,423.50

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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.