Home / 7,876,477.11-10,871,560.80-5,130,008.49

Finding the Fourth Proportional to 7,876,477.11, 10,871,560.80 and 5,130,008.49

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Solution

The fourth proportional to 7,876,477.11, 10,871,560.80 and 5,130,008.49 is: 7,080,728.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,876,477.11 : 10,871,560.80 = 5,130,008.49 : x
  2. Step 2: Convert to fraction form
    7,876,477.11/10,871,560.80 = 5,130,008.49/x
  3. Step 3: Cross multiply
    7,876,477.11x = 10,871,560.80 × 5,130,008.49
  4. Step 4: Simplify right side
    7,876,477.11x = 55,771,199,203,551.20
  5. Step 5: Solve for x
    x = 55,771,199,203,551.20/7,876,477.11
  6. Step 6: Final answer
    x = 7,080,728.91

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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.