Home / 18,781,769.60-28,206,868.80-16,430,307.20

Finding the Fourth Proportional to 18,781,769.60, 28,206,868.80 and 16,430,307.20

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Solution

The fourth proportional to 18,781,769.60, 28,206,868.80 and 16,430,307.20 is: 24,675,391.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,781,769.60 : 28,206,868.80 = 16,430,307.20 : x
  2. Step 2: Convert to fraction form
    18,781,769.60/28,206,868.80 = 16,430,307.20/x
  3. Step 3: Cross multiply
    18,781,769.60x = 28,206,868.80 × 16,430,307.20
  4. Step 4: Simplify right side
    18,781,769.60x = 463,447,519,534,095.38
  5. Step 5: Solve for x
    x = 463,447,519,534,095.38/18,781,769.60
  6. Step 6: Final answer
    x = 24,675,391.58

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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.