Home / 121,148,872.40-181,723,308.60-73,373,128.40

Finding the Fourth Proportional to 121,148,872.40, 181,723,308.60 and 73,373,128.40

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Solution

The fourth proportional to 121,148,872.40, 181,723,308.60 and 73,373,128.40 is: 110,059,692.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,148,872.40 : 181,723,308.60 = 73,373,128.40 : x
  2. Step 2: Convert to fraction form
    121,148,872.40/181,723,308.60 = 73,373,128.40/x
  3. Step 3: Cross multiply
    121,148,872.40x = 181,723,308.60 × 73,373,128.40
  4. Step 4: Simplify right side
    121,148,872.40x = 13,333,607,655,180,624
  5. Step 5: Solve for x
    x = 13,333,607,655,180,624/121,148,872.40
  6. Step 6: Final answer
    x = 110,059,692.60

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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.