Home / 371,782,661.40-557,727,136.20-126,150,631.20

Finding the Fourth Proportional to 371,782,661.40, 557,727,136.20 and 126,150,631.20

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Solution

The fourth proportional to 371,782,661.40, 557,727,136.20 and 126,150,631.20 is: 189,243,979.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,782,661.40 : 557,727,136.20 = 126,150,631.20 : x
  2. Step 2: Convert to fraction form
    371,782,661.40/557,727,136.20 = 126,150,631.20/x
  3. Step 3: Cross multiply
    371,782,661.40x = 557,727,136.20 × 126,150,631.20
  4. Step 4: Simplify right side
    371,782,661.40x = 70,357,630,268,998,376
  5. Step 5: Solve for x
    x = 70,357,630,268,998,376/371,782,661.40
  6. Step 6: Final answer
    x = 189,243,979.28

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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.