Home / 19,720,307.40-29,580,461.10-11,217,251.40

Finding the Fourth Proportional to 19,720,307.40, 29,580,461.10 and 11,217,251.40

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Solution

The fourth proportional to 19,720,307.40, 29,580,461.10 and 11,217,251.40 is: 16,825,877.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,720,307.40 : 29,580,461.10 = 11,217,251.40 : x
  2. Step 2: Convert to fraction form
    19,720,307.40/29,580,461.10 = 11,217,251.40/x
  3. Step 3: Cross multiply
    19,720,307.40x = 29,580,461.10 × 11,217,251.40
  4. Step 4: Simplify right side
    19,720,307.40x = 331,811,468,686,620.56
  5. Step 5: Solve for x
    x = 331,811,468,686,620.56/19,720,307.40
  6. Step 6: Final answer
    x = 16,825,877.10

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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.