Home / 7,886,077.80-11,829,116.70-7,407,780.90

Finding the Fourth Proportional to 7,886,077.80, 11,829,116.70 and 7,407,780.90

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Solution

The fourth proportional to 7,886,077.80, 11,829,116.70 and 7,407,780.90 is: 11,111,671.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,886,077.80 : 11,829,116.70 = 7,407,780.90 : x
  2. Step 2: Convert to fraction form
    7,886,077.80/11,829,116.70 = 7,407,780.90/x
  3. Step 3: Cross multiply
    7,886,077.80x = 11,829,116.70 × 7,407,780.90
  4. Step 4: Simplify right side
    7,886,077.80x = 87,627,504,754,131.03
  5. Step 5: Solve for x
    x = 87,627,504,754,131.03/7,886,077.80
  6. Step 6: Final answer
    x = 11,111,671.35

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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.