Home / 7,128,027.20-10,692,040.80-2,871,250.40

Finding the Fourth Proportional to 7,128,027.20, 10,692,040.80 and 2,871,250.40

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Solution

The fourth proportional to 7,128,027.20, 10,692,040.80 and 2,871,250.40 is: 4,306,875.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,128,027.20 : 10,692,040.80 = 2,871,250.40 : x
  2. Step 2: Convert to fraction form
    7,128,027.20/10,692,040.80 = 2,871,250.40/x
  3. Step 3: Cross multiply
    7,128,027.20x = 10,692,040.80 × 2,871,250.40
  4. Step 4: Simplify right side
    7,128,027.20x = 30,699,526,423,816.32
  5. Step 5: Solve for x
    x = 30,699,526,423,816.32/7,128,027.20
  6. Step 6: Final answer
    x = 4,306,875.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.