Home / 120,382,758.90-166,142,389.41-71,490,186.90

Finding the Fourth Proportional to 120,382,758.90, 166,142,389.41 and 71,490,186.90

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Solution

The fourth proportional to 120,382,758.90, 166,142,389.41 and 71,490,186.90 is: 98,664,880.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,382,758.90 : 166,142,389.41 = 71,490,186.90 : x
  2. Step 2: Convert to fraction form
    120,382,758.90/166,142,389.41 = 71,490,186.90/x
  3. Step 3: Cross multiply
    120,382,758.90x = 166,142,389.41 × 71,490,186.90
  4. Step 4: Simplify right side
    120,382,758.90x = 11,877,550,470,933,482
  5. Step 5: Solve for x
    x = 11,877,550,470,933,482/120,382,758.90
  6. Step 6: Final answer
    x = 98,664,880.08

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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.