Home / 28,283,487.31-42,407,868.30-10,991,497.67

Finding the Fourth Proportional to 28,283,487.31, 42,407,868.30 and 10,991,497.67

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Solution

The fourth proportional to 28,283,487.31, 42,407,868.30 and 10,991,497.67 is: 16,480,499.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,283,487.31 : 42,407,868.30 = 10,991,497.67 : x
  2. Step 2: Convert to fraction form
    28,283,487.31/42,407,868.30 = 10,991,497.67/x
  3. Step 3: Cross multiply
    28,283,487.31x = 42,407,868.30 × 10,991,497.67
  4. Step 4: Simplify right side
    28,283,487.31x = 466,125,985,609,116.81
  5. Step 5: Solve for x
    x = 466,125,985,609,116.81/28,283,487.31
  6. Step 6: Final answer
    x = 16,480,499.05

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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.