Home / 7,280,014.60-10,920,021.90-7,185,536.20

Finding the Fourth Proportional to 7,280,014.60, 10,920,021.90 and 7,185,536.20

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Solution

The fourth proportional to 7,280,014.60, 10,920,021.90 and 7,185,536.20 is: 10,778,304.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,280,014.60 : 10,920,021.90 = 7,185,536.20 : x
  2. Step 2: Convert to fraction form
    7,280,014.60/10,920,021.90 = 7,185,536.20/x
  3. Step 3: Cross multiply
    7,280,014.60x = 10,920,021.90 × 7,185,536.20
  4. Step 4: Simplify right side
    7,280,014.60x = 78,466,212,667,242.78
  5. Step 5: Solve for x
    x = 78,466,212,667,242.78/7,280,014.60
  6. Step 6: Final answer
    x = 10,778,304.30

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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.