Home / 120,769,307.60-166,657,244.28-65,763,957.20

Finding the Fourth Proportional to 120,769,307.60, 166,657,244.28 and 65,763,957.20

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Solution

The fourth proportional to 120,769,307.60, 166,657,244.28 and 65,763,957.20 is: 90,751,864.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,769,307.60 : 166,657,244.28 = 65,763,957.20 : x
  2. Step 2: Convert to fraction form
    120,769,307.60/166,657,244.28 = 65,763,957.20/x
  3. Step 3: Cross multiply
    120,769,307.60x = 166,657,244.28 × 65,763,957.20
  4. Step 4: Simplify right side
    120,769,307.60x = 10,960,039,879,899,866
  5. Step 5: Solve for x
    x = 10,960,039,879,899,866/120,769,307.60
  6. Step 6: Final answer
    x = 90,751,864.84

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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.