Home / 19,859,615.60-29,789,423.40-18,935,826.80

Finding the Fourth Proportional to 19,859,615.60, 29,789,423.40 and 18,935,826.80

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Solution

The fourth proportional to 19,859,615.60, 29,789,423.40 and 18,935,826.80 is: 28,403,740.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,859,615.60 : 29,789,423.40 = 18,935,826.80 : x
  2. Step 2: Convert to fraction form
    19,859,615.60/29,789,423.40 = 18,935,826.80/x
  3. Step 3: Cross multiply
    19,859,615.60x = 29,789,423.40 × 18,935,826.80
  4. Step 4: Simplify right side
    19,859,615.60x = 564,087,361,974,267.12
  5. Step 5: Solve for x
    x = 564,087,361,974,267.12/19,859,615.60
  6. Step 6: Final answer
    x = 28,403,740.20

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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.