Home / 13,068,980.80-19,603,471.20-7,680,212.80

Finding the Fourth Proportional to 13,068,980.80, 19,603,471.20 and 7,680,212.80

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Solution

The fourth proportional to 13,068,980.80, 19,603,471.20 and 7,680,212.80 is: 11,520,319.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,068,980.80 : 19,603,471.20 = 7,680,212.80 : x
  2. Step 2: Convert to fraction form
    13,068,980.80/19,603,471.20 = 7,680,212.80/x
  3. Step 3: Cross multiply
    13,068,980.80x = 19,603,471.20 × 7,680,212.80
  4. Step 4: Simplify right side
    13,068,980.80x = 150,558,830,434,671.34
  5. Step 5: Solve for x
    x = 150,558,830,434,671.34/13,068,980.80
  6. Step 6: Final answer
    x = 11,520,319.20

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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.