Home / 143,549,378.80-215,067,460.20-87,360,002.80

Finding the Fourth Proportional to 143,549,378.80, 215,067,460.20 and 87,360,002.80

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Solution

The fourth proportional to 143,549,378.80, 215,067,460.20 and 87,360,002.80 is: 130,883,839.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,549,378.80 : 215,067,460.20 = 87,360,002.80 : x
  2. Step 2: Convert to fraction form
    143,549,378.80/215,067,460.20 = 87,360,002.80/x
  3. Step 3: Cross multiply
    143,549,378.80x = 215,067,460.20 × 87,360,002.80
  4. Step 4: Simplify right side
    143,549,378.80x = 18,788,293,925,260,888
  5. Step 5: Solve for x
    x = 18,788,293,925,260,888/143,549,378.80
  6. Step 6: Final answer
    x = 130,883,839.99

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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.