Home / 30,279,620.40-45,429,928.20-13,252,513.20

Finding the Fourth Proportional to 30,279,620.40, 45,429,928.20 and 13,252,513.20

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Solution

The fourth proportional to 30,279,620.40, 45,429,928.20 and 13,252,513.20 is: 19,883,364.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,279,620.40 : 45,429,928.20 = 13,252,513.20 : x
  2. Step 2: Convert to fraction form
    30,279,620.40/45,429,928.20 = 13,252,513.20/x
  3. Step 3: Cross multiply
    30,279,620.40x = 45,429,928.20 × 13,252,513.20
  4. Step 4: Simplify right side
    30,279,620.40x = 602,060,723,145,552.25
  5. Step 5: Solve for x
    x = 602,060,723,145,552.25/30,279,620.40
  6. Step 6: Final answer
    x = 19,883,364.30

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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.