Home / 28,674,990.40-42,888,069.60-25,664,123.20

Finding the Fourth Proportional to 28,674,990.40, 42,888,069.60 and 25,664,123.20

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Solution

The fourth proportional to 28,674,990.40, 42,888,069.60 and 25,664,123.20 is: 38,384,832.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,674,990.40 : 42,888,069.60 = 25,664,123.20 : x
  2. Step 2: Convert to fraction form
    28,674,990.40/42,888,069.60 = 25,664,123.20/x
  3. Step 3: Cross multiply
    28,674,990.40x = 42,888,069.60 × 25,664,123.20
  4. Step 4: Simplify right side
    28,674,990.40x = 1,100,684,702,024,574.75
  5. Step 5: Solve for x
    x = 1,100,684,702,024,574.75/28,674,990.40
  6. Step 6: Final answer
    x = 38,384,832.45

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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.