Home / 28,355,301.45-42,532,952.18-13,210,763.85

Finding the Fourth Proportional to 28,355,301.45, 42,532,952.18 and 13,210,763.85

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Solution

The fourth proportional to 28,355,301.45, 42,532,952.18 and 13,210,763.85 is: 19,816,145.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,355,301.45 : 42,532,952.18 = 13,210,763.85 : x
  2. Step 2: Convert to fraction form
    28,355,301.45/42,532,952.18 = 13,210,763.85/x
  3. Step 3: Cross multiply
    28,355,301.45x = 42,532,952.18 × 13,210,763.85
  4. Step 4: Simplify right side
    28,355,301.45x = 561,892,787,027,268.81
  5. Step 5: Solve for x
    x = 561,892,787,027,268.81/28,355,301.45
  6. Step 6: Final answer
    x = 19,816,145.78

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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.