Home / 19,413,821.60-29,120,732.40-19,161,879.20

Finding the Fourth Proportional to 19,413,821.60, 29,120,732.40 and 19,161,879.20

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Solution

The fourth proportional to 19,413,821.60, 29,120,732.40 and 19,161,879.20 is: 28,742,818.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,413,821.60 : 29,120,732.40 = 19,161,879.20 : x
  2. Step 2: Convert to fraction form
    19,413,821.60/29,120,732.40 = 19,161,879.20/x
  3. Step 3: Cross multiply
    19,413,821.60x = 29,120,732.40 × 19,161,879.20
  4. Step 4: Simplify right side
    19,413,821.60x = 558,007,956,464,326
  5. Step 5: Solve for x
    x = 558,007,956,464,326/19,413,821.60
  6. Step 6: Final answer
    x = 28,742,818.80

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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.