Home / 21,115,251.40-31,672,877.10-19,225,683.40

Finding the Fourth Proportional to 21,115,251.40, 31,672,877.10 and 19,225,683.40

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Solution

The fourth proportional to 21,115,251.40, 31,672,877.10 and 19,225,683.40 is: 28,838,525.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,115,251.40 : 31,672,877.10 = 19,225,683.40 : x
  2. Step 2: Convert to fraction form
    21,115,251.40/31,672,877.10 = 19,225,683.40/x
  3. Step 3: Cross multiply
    21,115,251.40x = 31,672,877.10 × 19,225,683.40
  4. Step 4: Simplify right side
    21,115,251.40x = 608,932,707,491,710.12
  5. Step 5: Solve for x
    x = 608,932,707,491,710.12/21,115,251.40
  6. Step 6: Final answer
    x = 28,838,525.10

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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.