Home / 19,898,123.20-29,869,303.20-12,333,630.40

Finding the Fourth Proportional to 19,898,123.20, 29,869,303.20 and 12,333,630.40

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Solution

The fourth proportional to 19,898,123.20, 29,869,303.20 and 12,333,630.40 is: 18,514,155.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,898,123.20 : 29,869,303.20 = 12,333,630.40 : x
  2. Step 2: Convert to fraction form
    19,898,123.20/29,869,303.20 = 12,333,630.40/x
  3. Step 3: Cross multiply
    19,898,123.20x = 29,869,303.20 × 12,333,630.40
  4. Step 4: Simplify right side
    19,898,123.20x = 368,396,945,974,337.31
  5. Step 5: Solve for x
    x = 368,396,945,974,337.31/19,898,123.20
  6. Step 6: Final answer
    x = 18,514,155.44

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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.