Home / 30,319,347.60-45,479,021.40-12,114,540.90

Finding the Fourth Proportional to 30,319,347.60, 45,479,021.40 and 12,114,540.90

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Solution

The fourth proportional to 30,319,347.60, 45,479,021.40 and 12,114,540.90 is: 18,171,811.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,319,347.60 : 45,479,021.40 = 12,114,540.90 : x
  2. Step 2: Convert to fraction form
    30,319,347.60/45,479,021.40 = 12,114,540.90/x
  3. Step 3: Cross multiply
    30,319,347.60x = 45,479,021.40 × 12,114,540.90
  4. Step 4: Simplify right side
    30,319,347.60x = 550,957,464,842,275.25
  5. Step 5: Solve for x
    x = 550,957,464,842,275.25/30,319,347.60
  6. Step 6: Final answer
    x = 18,171,811.35

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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.