Home / 7,878,178.35-10,871,969.19-4,440,419.38

Finding the Fourth Proportional to 7,878,178.35, 10,871,969.19 and 4,440,419.38

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Solution

The fourth proportional to 7,878,178.35, 10,871,969.19 and 4,440,419.38 is: 6,127,825.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,878,178.35 : 10,871,969.19 = 4,440,419.38 : x
  2. Step 2: Convert to fraction form
    7,878,178.35/10,871,969.19 = 4,440,419.38/x
  3. Step 3: Cross multiply
    7,878,178.35x = 10,871,969.19 × 4,440,419.38
  4. Step 4: Simplify right side
    7,878,178.35x = 48,276,102,690,038.90
  5. Step 5: Solve for x
    x = 48,276,102,690,038.90/7,878,178.35
  6. Step 6: Final answer
    x = 6,127,825.56

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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.