Home / 13,348,015.20-20,022,022.80-7,280,402.40

Finding the Fourth Proportional to 13,348,015.20, 20,022,022.80 and 7,280,402.40

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Solution

The fourth proportional to 13,348,015.20, 20,022,022.80 and 7,280,402.40 is: 10,920,603.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,348,015.20 : 20,022,022.80 = 7,280,402.40 : x
  2. Step 2: Convert to fraction form
    13,348,015.20/20,022,022.80 = 7,280,402.40/x
  3. Step 3: Cross multiply
    13,348,015.20x = 20,022,022.80 × 7,280,402.40
  4. Step 4: Simplify right side
    13,348,015.20x = 145,768,382,845,974.72
  5. Step 5: Solve for x
    x = 145,768,382,845,974.72/13,348,015.20
  6. Step 6: Final answer
    x = 10,920,603.60

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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.