Home / 19,720,443.40-29,580,665.10-11,217,387.40

Finding the Fourth Proportional to 19,720,443.40, 29,580,665.10 and 11,217,387.40

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Solution

The fourth proportional to 19,720,443.40, 29,580,665.10 and 11,217,387.40 is: 16,826,081.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,720,443.40 : 29,580,665.10 = 11,217,387.40 : x
  2. Step 2: Convert to fraction form
    19,720,443.40/29,580,665.10 = 11,217,387.40/x
  3. Step 3: Cross multiply
    19,720,443.40x = 29,580,665.10 × 11,217,387.40
  4. Step 4: Simplify right side
    19,720,443.40x = 331,817,779,976,359.75
  5. Step 5: Solve for x
    x = 331,817,779,976,359.75/19,720,443.40
  6. Step 6: Final answer
    x = 16,826,081.10

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1.5x scale

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.