Home / 28,017,923.40-42,037,382.70-10,990,816.20

Finding the Fourth Proportional to 28,017,923.40, 42,037,382.70 and 10,990,816.20

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Solution

The fourth proportional to 28,017,923.40, 42,037,382.70 and 10,990,816.20 is: 16,490,342.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,017,923.40 : 42,037,382.70 = 10,990,816.20 : x
  2. Step 2: Convert to fraction form
    28,017,923.40/42,037,382.70 = 10,990,816.20/x
  3. Step 3: Cross multiply
    28,017,923.40x = 42,037,382.70 × 10,990,816.20
  4. Step 4: Simplify right side
    28,017,923.40x = 462,025,146,784,759.75
  5. Step 5: Solve for x
    x = 462,025,146,784,759.75/28,017,923.40
  6. Step 6: Final answer
    x = 16,490,342.28

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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.