Home / 105,630,006.30-158,445,009.45-80,120,838.30

Finding the Fourth Proportional to 105,630,006.30, 158,445,009.45 and 80,120,838.30

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Solution

The fourth proportional to 105,630,006.30, 158,445,009.45 and 80,120,838.30 is: 120,181,257.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,630,006.30 : 158,445,009.45 = 80,120,838.30 : x
  2. Step 2: Convert to fraction form
    105,630,006.30/158,445,009.45 = 80,120,838.30/x
  3. Step 3: Cross multiply
    105,630,006.30x = 158,445,009.45 × 80,120,838.30
  4. Step 4: Simplify right side
    105,630,006.30x = 12,694,746,981,585,420
  5. Step 5: Solve for x
    x = 12,694,746,981,585,420/105,630,006.30
  6. Step 6: Final answer
    x = 120,181,257.45

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1.5x scale

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.