Home / 143,578,411.20-215,367,616.80-140,389,765.20

Finding the Fourth Proportional to 143,578,411.20, 215,367,616.80 and 140,389,765.20

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Solution

The fourth proportional to 143,578,411.20, 215,367,616.80 and 140,389,765.20 is: 210,584,647.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,578,411.20 : 215,367,616.80 = 140,389,765.20 : x
  2. Step 2: Convert to fraction form
    143,578,411.20/215,367,616.80 = 140,389,765.20/x
  3. Step 3: Cross multiply
    143,578,411.20x = 215,367,616.80 × 140,389,765.20
  4. Step 4: Simplify right side
    143,578,411.20x = 30,235,409,154,235,576
  5. Step 5: Solve for x
    x = 30,235,409,154,235,576/143,578,411.20
  6. Step 6: Final answer
    x = 210,584,647.80

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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.