Home / 19,183,541.40-28,775,312.10-13,136,923.80

Finding the Fourth Proportional to 19,183,541.40, 28,775,312.10 and 13,136,923.80

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Solution

The fourth proportional to 19,183,541.40, 28,775,312.10 and 13,136,923.80 is: 19,705,385.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,183,541.40 : 28,775,312.10 = 13,136,923.80 : x
  2. Step 2: Convert to fraction form
    19,183,541.40/28,775,312.10 = 13,136,923.80/x
  3. Step 3: Cross multiply
    19,183,541.40x = 28,775,312.10 × 13,136,923.80
  4. Step 4: Simplify right side
    19,183,541.40x = 378,019,082,378,918
  5. Step 5: Solve for x
    x = 378,019,082,378,918/19,183,541.40
  6. Step 6: Final answer
    x = 19,705,385.70

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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.