Home / 8,918,057.52-12,312,018.36-5,871,129.12

Finding the Fourth Proportional to 8,918,057.52, 12,312,018.36 and 5,871,129.12

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Solution

The fourth proportional to 8,918,057.52, 12,312,018.36 and 5,871,129.12 is: 8,105,515.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,918,057.52 : 12,312,018.36 = 5,871,129.12 : x
  2. Step 2: Convert to fraction form
    8,918,057.52/12,312,018.36 = 5,871,129.12/x
  3. Step 3: Cross multiply
    8,918,057.52x = 12,312,018.36 × 5,871,129.12
  4. Step 4: Simplify right side
    8,918,057.52x = 72,285,449,519,370.64
  5. Step 5: Solve for x
    x = 72,285,449,519,370.64/8,918,057.52
  6. Step 6: Final answer
    x = 8,105,515.06

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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.