Home / 7,876,479.12-10,871,563.56-5,130,010.50

Finding the Fourth Proportional to 7,876,479.12, 10,871,563.56 and 5,130,010.50

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Solution

The fourth proportional to 7,876,479.12, 10,871,563.56 and 5,130,010.50 is: 7,080,731.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,876,479.12 : 10,871,563.56 = 5,130,010.50 : x
  2. Step 2: Convert to fraction form
    7,876,479.12/10,871,563.56 = 5,130,010.50/x
  3. Step 3: Cross multiply
    7,876,479.12x = 10,871,563.56 × 5,130,010.50
  4. Step 4: Simplify right side
    7,876,479.12x = 55,771,235,214,217.38
  5. Step 5: Solve for x
    x = 55,771,235,214,217.38/7,876,479.12
  6. Step 6: Final answer
    x = 7,080,731.68

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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.