Home / 10,341,820.70-15,512,731.05-5,239,987.10

Finding the Fourth Proportional to 10,341,820.70, 15,512,731.05 and 5,239,987.10

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Solution

The fourth proportional to 10,341,820.70, 15,512,731.05 and 5,239,987.10 is: 7,859,980.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,341,820.70 : 15,512,731.05 = 5,239,987.10 : x
  2. Step 2: Convert to fraction form
    10,341,820.70/15,512,731.05 = 5,239,987.10/x
  3. Step 3: Cross multiply
    10,341,820.70x = 15,512,731.05 × 5,239,987.10
  4. Step 4: Simplify right side
    10,341,820.70x = 81,286,510,587,769.45
  5. Step 5: Solve for x
    x = 81,286,510,587,769.45/10,341,820.70
  6. Step 6: Final answer
    x = 7,859,980.65

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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.