Home / 20,656,916.30-30,985,374.45-18,389,434.70

Finding the Fourth Proportional to 20,656,916.30, 30,985,374.45 and 18,389,434.70

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Solution

The fourth proportional to 20,656,916.30, 30,985,374.45 and 18,389,434.70 is: 27,584,152.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,656,916.30 : 30,985,374.45 = 18,389,434.70 : x
  2. Step 2: Convert to fraction form
    20,656,916.30/30,985,374.45 = 18,389,434.70/x
  3. Step 3: Cross multiply
    20,656,916.30x = 30,985,374.45 × 18,389,434.70
  4. Step 4: Simplify right side
    20,656,916.30x = 569,803,520,103,323.38
  5. Step 5: Solve for x
    x = 569,803,520,103,323.38/20,656,916.30
  6. Step 6: Final answer
    x = 27,584,152.05

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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.