Home / 87,488,989.40-120,738,473.34-50,319,280.28

Finding the Fourth Proportional to 87,488,989.40, 120,738,473.34 and 50,319,280.28

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Solution

The fourth proportional to 87,488,989.40, 120,738,473.34 and 50,319,280.28 is: 69,442,716.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,488,989.40 : 120,738,473.34 = 50,319,280.28 : x
  2. Step 2: Convert to fraction form
    87,488,989.40/120,738,473.34 = 50,319,280.28/x
  3. Step 3: Cross multiply
    87,488,989.40x = 120,738,473.34 × 50,319,280.28
  4. Step 4: Simplify right side
    87,488,989.40x = 6,075,473,080,574,768
  5. Step 5: Solve for x
    x = 6,075,473,080,574,768/87,488,989.40
  6. Step 6: Final answer
    x = 69,442,716.42

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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.