Home / 30,232,898.40-45,352,112.40-12,278,287.20

Finding the Fourth Proportional to 30,232,898.40, 45,352,112.40 and 12,278,287.20

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Solution

The fourth proportional to 30,232,898.40, 45,352,112.40 and 12,278,287.20 is: 18,418,553.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,232,898.40 : 45,352,112.40 = 12,278,287.20 : x
  2. Step 2: Convert to fraction form
    30,232,898.40/45,352,112.40 = 12,278,287.20/x
  3. Step 3: Cross multiply
    30,232,898.40x = 45,352,112.40 × 12,278,287.20
  4. Step 4: Simplify right side
    30,232,898.40x = 556,846,261,173,881.25
  5. Step 5: Solve for x
    x = 556,846,261,173,881.25/30,232,898.40
  6. Step 6: Final answer
    x = 18,418,553.65

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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.