Home / 12,403,955.20-18,605,932.80-3,886,902.40

Finding the Fourth Proportional to 12,403,955.20, 18,605,932.80 and 3,886,902.40

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Solution

The fourth proportional to 12,403,955.20, 18,605,932.80 and 3,886,902.40 is: 5,830,353.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,403,955.20 : 18,605,932.80 = 3,886,902.40 : x
  2. Step 2: Convert to fraction form
    12,403,955.20/18,605,932.80 = 3,886,902.40/x
  3. Step 3: Cross multiply
    12,403,955.20x = 18,605,932.80 × 3,886,902.40
  4. Step 4: Simplify right side
    12,403,955.20x = 72,319,444,854,558.72
  5. Step 5: Solve for x
    x = 72,319,444,854,558.72/12,403,955.20
  6. Step 6: Final answer
    x = 5,830,353.60

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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.