Home / 19,152,011.40-28,728,017.10-9,074,315.40

Finding the Fourth Proportional to 19,152,011.40, 28,728,017.10 and 9,074,315.40

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Solution

The fourth proportional to 19,152,011.40, 28,728,017.10 and 9,074,315.40 is: 13,611,473.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,152,011.40 : 28,728,017.10 = 9,074,315.40 : x
  2. Step 2: Convert to fraction form
    19,152,011.40/28,728,017.10 = 9,074,315.40/x
  3. Step 3: Cross multiply
    19,152,011.40x = 28,728,017.10 × 9,074,315.40
  4. Step 4: Simplify right side
    19,152,011.40x = 260,687,087,981,993.38
  5. Step 5: Solve for x
    x = 260,687,087,981,993.38/19,152,011.40
  6. Step 6: Final answer
    x = 13,611,473.10

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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.