Home / 7,878,188.79-10,871,983.40-4,440,429.83

Finding the Fourth Proportional to 7,878,188.79, 10,871,983.40 and 4,440,429.83

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Solution

The fourth proportional to 7,878,188.79, 10,871,983.40 and 4,440,429.83 is: 6,127,839.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,878,188.79 : 10,871,983.40 = 4,440,429.83 : x
  2. Step 2: Convert to fraction form
    7,878,188.79/10,871,983.40 = 4,440,429.83/x
  3. Step 3: Cross multiply
    7,878,188.79x = 10,871,983.40 × 4,440,429.83
  4. Step 4: Simplify right side
    7,878,188.79x = 48,276,279,405,602.62
  5. Step 5: Solve for x
    x = 48,276,279,405,602.62/7,878,188.79
  6. Step 6: Final answer
    x = 6,127,839.87

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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.