Home / 10,478,538.60-15,717,807.90-4,420,111.20

Finding the Fourth Proportional to 10,478,538.60, 15,717,807.90 and 4,420,111.20

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Solution

The fourth proportional to 10,478,538.60, 15,717,807.90 and 4,420,111.20 is: 6,630,166.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,478,538.60 : 15,717,807.90 = 4,420,111.20 : x
  2. Step 2: Convert to fraction form
    10,478,538.60/15,717,807.90 = 4,420,111.20/x
  3. Step 3: Cross multiply
    10,478,538.60x = 15,717,807.90 × 4,420,111.20
  4. Step 4: Simplify right side
    10,478,538.60x = 69,474,458,738,238.48
  5. Step 5: Solve for x
    x = 69,474,458,738,238.48/10,478,538.60
  6. Step 6: Final answer
    x = 6,630,166.80

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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.