Home / 57,780,123.40-86,670,185.10-19,428,891.40

Finding the Fourth Proportional to 57,780,123.40, 86,670,185.10 and 19,428,891.40

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Solution

The fourth proportional to 57,780,123.40, 86,670,185.10 and 19,428,891.40 is: 29,143,337.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,780,123.40 : 86,670,185.10 = 19,428,891.40 : x
  2. Step 2: Convert to fraction form
    57,780,123.40/86,670,185.10 = 19,428,891.40/x
  3. Step 3: Cross multiply
    57,780,123.40x = 86,670,185.10 × 19,428,891.40
  4. Step 4: Simplify right side
    57,780,123.40x = 1,683,905,613,925,798
  5. Step 5: Solve for x
    x = 1,683,905,613,925,798/57,780,123.40
  6. Step 6: Final answer
    x = 29,143,337.10

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Similar ratio
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1.5x scale

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.