Home / 30,437,980.41-45,656,305.20-7,409,036.55

Finding the Fourth Proportional to 30,437,980.41, 45,656,305.20 and 7,409,036.55

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Solution

The fourth proportional to 30,437,980.41, 45,656,305.20 and 7,409,036.55 is: 11,113,392.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,437,980.41 : 45,656,305.20 = 7,409,036.55 : x
  2. Step 2: Convert to fraction form
    30,437,980.41/45,656,305.20 = 7,409,036.55/x
  3. Step 3: Cross multiply
    30,437,980.41x = 45,656,305.20 × 7,409,036.55
  4. Step 4: Simplify right side
    30,437,980.41x = 338,269,233,964,755.06
  5. Step 5: Solve for x
    x = 338,269,233,964,755.06/30,437,980.41
  6. Step 6: Final answer
    x = 11,113,392.85

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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.