Home / 129,345,848.80-194,160,490.80-80,878,429.60

Finding the Fourth Proportional to 129,345,848.80, 194,160,490.80 and 80,878,429.60

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Solution

The fourth proportional to 129,345,848.80, 194,160,490.80 and 80,878,429.60 is: 121,406,258.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,345,848.80 : 194,160,490.80 = 80,878,429.60 : x
  2. Step 2: Convert to fraction form
    129,345,848.80/194,160,490.80 = 80,878,429.60/x
  3. Step 3: Cross multiply
    129,345,848.80x = 194,160,490.80 × 80,878,429.60
  4. Step 4: Simplify right side
    129,345,848.80x = 15,703,395,586,269,248
  5. Step 5: Solve for x
    x = 15,703,395,586,269,248/129,345,848.80
  6. Step 6: Final answer
    x = 121,406,258.74

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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.