Home / 21,750,765.32-30,015,421.35-11,961,199.28

Finding the Fourth Proportional to 21,750,765.32, 30,015,421.35 and 11,961,199.28

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Solution

The fourth proportional to 21,750,765.32, 30,015,421.35 and 11,961,199.28 is: 16,506,105.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,750,765.32 : 30,015,421.35 = 11,961,199.28 : x
  2. Step 2: Convert to fraction form
    21,750,765.32/30,015,421.35 = 11,961,199.28/x
  3. Step 3: Cross multiply
    21,750,765.32x = 30,015,421.35 × 11,961,199.28
  4. Step 4: Simplify right side
    21,750,765.32x = 359,020,436,240,516.62
  5. Step 5: Solve for x
    x = 359,020,436,240,516.62/21,750,765.32
  6. Step 6: Final answer
    x = 16,506,105.92

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.