Home / 15,000,504.96-20,700,702.72-8,124,965.76

Finding the Fourth Proportional to 15,000,504.96, 20,700,702.72 and 8,124,965.76

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Solution

The fourth proportional to 15,000,504.96, 20,700,702.72 and 8,124,965.76 is: 11,212,455.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,000,504.96 : 20,700,702.72 = 8,124,965.76 : x
  2. Step 2: Convert to fraction form
    15,000,504.96/20,700,702.72 = 8,124,965.76/x
  3. Step 3: Cross multiply
    15,000,504.96x = 20,700,702.72 × 8,124,965.76
  4. Step 4: Simplify right side
    15,000,504.96x = 168,192,500,807,938.84
  5. Step 5: Solve for x
    x = 168,192,500,807,938.84/15,000,504.96
  6. Step 6: Final answer
    x = 11,212,455.93

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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.