Home / 13,758,082.65-20,637,123.98-7,786,114.65

Finding the Fourth Proportional to 13,758,082.65, 20,637,123.98 and 7,786,114.65

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Solution

The fourth proportional to 13,758,082.65, 20,637,123.98 and 7,786,114.65 is: 11,679,171.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,758,082.65 : 20,637,123.98 = 7,786,114.65 : x
  2. Step 2: Convert to fraction form
    13,758,082.65/20,637,123.98 = 7,786,114.65/x
  3. Step 3: Cross multiply
    13,758,082.65x = 20,637,123.98 × 7,786,114.65
  4. Step 4: Simplify right side
    13,758,082.65x = 160,683,013,315,613.75
  5. Step 5: Solve for x
    x = 160,683,013,315,613.75/13,758,082.65
  6. Step 6: Final answer
    x = 11,679,171.98

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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.