Home / 18,911,316.60-28,366,974.90-16,679,264.40

Finding the Fourth Proportional to 18,911,316.60, 28,366,974.90 and 16,679,264.40

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Solution

The fourth proportional to 18,911,316.60, 28,366,974.90 and 16,679,264.40 is: 25,018,896.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,911,316.60 : 28,366,974.90 = 16,679,264.40 : x
  2. Step 2: Convert to fraction form
    18,911,316.60/28,366,974.90 = 16,679,264.40/x
  3. Step 3: Cross multiply
    18,911,316.60x = 28,366,974.90 × 16,679,264.40
  4. Step 4: Simplify right side
    18,911,316.60x = 473,140,274,585,263.56
  5. Step 5: Solve for x
    x = 473,140,274,585,263.56/18,911,316.60
  6. Step 6: Final answer
    x = 25,018,896.60

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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.