Home / 19,014,681.80-28,522,022.70-7,649,280.20

Finding the Fourth Proportional to 19,014,681.80, 28,522,022.70 and 7,649,280.20

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Solution

The fourth proportional to 19,014,681.80, 28,522,022.70 and 7,649,280.20 is: 11,473,920.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,014,681.80 : 28,522,022.70 = 7,649,280.20 : x
  2. Step 2: Convert to fraction form
    19,014,681.80/28,522,022.70 = 7,649,280.20/x
  3. Step 3: Cross multiply
    19,014,681.80x = 28,522,022.70 × 7,649,280.20
  4. Step 4: Simplify right side
    19,014,681.80x = 218,172,943,503,060.53
  5. Step 5: Solve for x
    x = 218,172,943,503,060.53/19,014,681.80
  6. Step 6: Final answer
    x = 11,473,920.30

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Similar ratio
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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.