Home / 12,353,693.20-18,521,899.80-7,302,403.60

Finding the Fourth Proportional to 12,353,693.20, 18,521,899.80 and 7,302,403.60

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Solution

The fourth proportional to 12,353,693.20, 18,521,899.80 and 7,302,403.60 is: 10,948,498.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,353,693.20 : 18,521,899.80 = 7,302,403.60 : x
  2. Step 2: Convert to fraction form
    12,353,693.20/18,521,899.80 = 7,302,403.60/x
  3. Step 3: Cross multiply
    12,353,693.20x = 18,521,899.80 × 7,302,403.60
  4. Step 4: Simplify right side
    12,353,693.20x = 135,254,387,778,359.28
  5. Step 5: Solve for x
    x = 135,254,387,778,359.28/12,353,693.20
  6. Step 6: Final answer
    x = 10,948,498.20

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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.