Home / 15,000,511.96-20,700,712.38-8,124,972.76

Finding the Fourth Proportional to 15,000,511.96, 20,700,712.38 and 8,124,972.76

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Solution

The fourth proportional to 15,000,511.96, 20,700,712.38 and 8,124,972.76 is: 11,212,465.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,000,511.96 : 20,700,712.38 = 8,124,972.76 : x
  2. Step 2: Convert to fraction form
    15,000,511.96/20,700,712.38 = 8,124,972.76/x
  3. Step 3: Cross multiply
    15,000,511.96x = 20,700,712.38 × 8,124,972.76
  4. Step 4: Simplify right side
    15,000,511.96x = 168,192,724,200,094.75
  5. Step 5: Solve for x
    x = 168,192,724,200,094.75/15,000,511.96
  6. Step 6: Final answer
    x = 11,212,465.59

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1.5x scale

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.