Home / 287,630,651.62-431,443,375.18-90,894,097.16

Finding the Fourth Proportional to 287,630,651.62, 431,443,375.18 and 90,894,097.16

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Solution

The fourth proportional to 287,630,651.62, 431,443,375.18 and 90,894,097.16 is: 136,340,323.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,630,651.62 : 431,443,375.18 = 90,894,097.16 : x
  2. Step 2: Convert to fraction form
    287,630,651.62/431,443,375.18 = 90,894,097.16/x
  3. Step 3: Cross multiply
    287,630,651.62x = 431,443,375.18 × 90,894,097.16
  4. Step 4: Simplify right side
    287,630,651.62x = 39,215,656,062,649,248
  5. Step 5: Solve for x
    x = 39,215,656,062,649,248/287,630,651.62
  6. Step 6: Final answer
    x = 136,340,323.40

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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.