Home / 135,555,407.85-187,143,281.52-103,705,655.28

Finding the Fourth Proportional to 135,555,407.85, 187,143,281.52 and 103,705,655.28

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Solution

The fourth proportional to 135,555,407.85, 187,143,281.52 and 103,705,655.28 is: 143,172,573.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,555,407.85 : 187,143,281.52 = 103,705,655.28 : x
  2. Step 2: Convert to fraction form
    135,555,407.85/187,143,281.52 = 103,705,655.28/x
  3. Step 3: Cross multiply
    135,555,407.85x = 187,143,281.52 × 103,705,655.28
  4. Step 4: Simplify right side
    135,555,407.85x = 19,407,816,641,281,116
  5. Step 5: Solve for x
    x = 19,407,816,641,281,116/135,555,407.85
  6. Step 6: Final answer
    x = 143,172,573.85

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.