Home / 7,876,478.11-10,871,562.18-5,130,009.49

Finding the Fourth Proportional to 7,876,478.11, 10,871,562.18 and 5,130,009.49

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Solution

The fourth proportional to 7,876,478.11, 10,871,562.18 and 5,130,009.49 is: 7,080,730.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,876,478.11 : 10,871,562.18 = 5,130,009.49 : x
  2. Step 2: Convert to fraction form
    7,876,478.11/10,871,562.18 = 5,130,009.49/x
  3. Step 3: Cross multiply
    7,876,478.11x = 10,871,562.18 × 5,130,009.49
  4. Step 4: Simplify right side
    7,876,478.11x = 55,771,217,154,525.09
  5. Step 5: Solve for x
    x = 55,771,217,154,525.09/7,876,478.11
  6. Step 6: Final answer
    x = 7,080,730.29

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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.