Home / 185,705,549.28-256,003,559.10-129,777,332.40

Finding the Fourth Proportional to 185,705,549.28, 256,003,559.10 and 129,777,332.40

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Solution

The fourth proportional to 185,705,549.28, 256,003,559.10 and 129,777,332.40 is: 178,903,964.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,705,549.28 : 256,003,559.10 = 129,777,332.40 : x
  2. Step 2: Convert to fraction form
    185,705,549.28/256,003,559.10 = 129,777,332.40/x
  3. Step 3: Cross multiply
    185,705,549.28x = 256,003,559.10 × 129,777,332.40
  4. Step 4: Simplify right side
    185,705,549.28x = 33,223,458,984,903,744
  5. Step 5: Solve for x
    x = 33,223,458,984,903,744/185,705,549.28
  6. Step 6: Final answer
    x = 178,903,964.44

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1.5x scale

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.