Home / 8,065,166.40-12,097,749.60-7,449,307.20

Finding the Fourth Proportional to 8,065,166.40, 12,097,749.60 and 7,449,307.20

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Solution

The fourth proportional to 8,065,166.40, 12,097,749.60 and 7,449,307.20 is: 11,173,960.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,065,166.40 : 12,097,749.60 = 7,449,307.20 : x
  2. Step 2: Convert to fraction form
    8,065,166.40/12,097,749.60 = 7,449,307.20/x
  3. Step 3: Cross multiply
    8,065,166.40x = 12,097,749.60 × 7,449,307.20
  4. Step 4: Simplify right side
    8,065,166.40x = 90,119,853,199,077.12
  5. Step 5: Solve for x
    x = 90,119,853,199,077.12/8,065,166.40
  6. Step 6: Final answer
    x = 11,173,960.80

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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.