Home / 19,011,631.20-28,517,446.80-16,921,442.40

Finding the Fourth Proportional to 19,011,631.20, 28,517,446.80 and 16,921,442.40

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Solution

The fourth proportional to 19,011,631.20, 28,517,446.80 and 16,921,442.40 is: 25,382,163.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,011,631.20 : 28,517,446.80 = 16,921,442.40 : x
  2. Step 2: Convert to fraction form
    19,011,631.20/28,517,446.80 = 16,921,442.40/x
  3. Step 3: Cross multiply
    19,011,631.20x = 28,517,446.80 × 16,921,442.40
  4. Step 4: Simplify right side
    19,011,631.20x = 482,556,333,421,264.31
  5. Step 5: Solve for x
    x = 482,556,333,421,264.31/19,011,631.20
  6. Step 6: Final answer
    x = 25,382,163.60

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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.