Home / 20,096,779.70-30,145,169.55-10,515,095.30

Finding the Fourth Proportional to 20,096,779.70, 30,145,169.55 and 10,515,095.30

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Solution

The fourth proportional to 20,096,779.70, 30,145,169.55 and 10,515,095.30 is: 15,772,642.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,096,779.70 : 30,145,169.55 = 10,515,095.30 : x
  2. Step 2: Convert to fraction form
    20,096,779.70/30,145,169.55 = 10,515,095.30/x
  3. Step 3: Cross multiply
    20,096,779.70x = 30,145,169.55 × 10,515,095.30
  4. Step 4: Simplify right side
    20,096,779.70x = 316,979,330,652,908.12
  5. Step 5: Solve for x
    x = 316,979,330,652,908.12/20,096,779.70
  6. Step 6: Final answer
    x = 15,772,642.95

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1.5x scale

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.