Home / 12,602,719.20-18,904,078.80-5,871,813.60

Finding the Fourth Proportional to 12,602,719.20, 18,904,078.80 and 5,871,813.60

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Solution

The fourth proportional to 12,602,719.20, 18,904,078.80 and 5,871,813.60 is: 8,807,720.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,602,719.20 : 18,904,078.80 = 5,871,813.60 : x
  2. Step 2: Convert to fraction form
    12,602,719.20/18,904,078.80 = 5,871,813.60/x
  3. Step 3: Cross multiply
    12,602,719.20x = 18,904,078.80 × 5,871,813.60
  4. Step 4: Simplify right side
    12,602,719.20x = 111,001,226,993,311.67
  5. Step 5: Solve for x
    x = 111,001,226,993,311.67/12,602,719.20
  6. Step 6: Final answer
    x = 8,807,720.40

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1.5x scale

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.