Home / 7,878,186.42-10,871,980.11-4,440,427.45

Finding the Fourth Proportional to 7,878,186.42, 10,871,980.11 and 4,440,427.45

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Solution

The fourth proportional to 7,878,186.42, 10,871,980.11 and 4,440,427.45 is: 6,127,836.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,878,186.42 : 10,871,980.11 = 4,440,427.45 : x
  2. Step 2: Convert to fraction form
    7,878,186.42/10,871,980.11 = 4,440,427.45/x
  3. Step 3: Cross multiply
    7,878,186.42x = 10,871,980.11 × 4,440,427.45
  4. Step 4: Simplify right side
    7,878,186.42x = 48,276,238,916,298.02
  5. Step 5: Solve for x
    x = 48,276,238,916,298.02/7,878,186.42
  6. Step 6: Final answer
    x = 6,127,836.58

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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.