Home / 110,720,158.40-166,080,237.60-78,408,545.60

Finding the Fourth Proportional to 110,720,158.40, 166,080,237.60 and 78,408,545.60

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Solution

The fourth proportional to 110,720,158.40, 166,080,237.60 and 78,408,545.60 is: 117,612,818.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,720,158.40 : 166,080,237.60 = 78,408,545.60 : x
  2. Step 2: Convert to fraction form
    110,720,158.40/166,080,237.60 = 78,408,545.60/x
  3. Step 3: Cross multiply
    110,720,158.40x = 166,080,237.60 × 78,408,545.60
  4. Step 4: Simplify right side
    110,720,158.40x = 13,022,109,883,118,434
  5. Step 5: Solve for x
    x = 13,022,109,883,118,434/110,720,158.40
  6. Step 6: Final answer
    x = 117,612,818.40

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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.