Home / 173,867,998.40-260,801,997.60-78,316,510.40

Finding the Fourth Proportional to 173,867,998.40, 260,801,997.60 and 78,316,510.40

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Solution

The fourth proportional to 173,867,998.40, 260,801,997.60 and 78,316,510.40 is: 117,474,765.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,867,998.40 : 260,801,997.60 = 78,316,510.40 : x
  2. Step 2: Convert to fraction form
    173,867,998.40/260,801,997.60 = 78,316,510.40/x
  3. Step 3: Cross multiply
    173,867,998.40x = 260,801,997.60 × 78,316,510.40
  4. Step 4: Simplify right side
    173,867,998.40x = 20,425,102,357,381,176
  5. Step 5: Solve for x
    x = 20,425,102,357,381,176/173,867,998.40
  6. Step 6: Final answer
    x = 117,474,765.60

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Double scale
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Similar ratio
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1.5x scale

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.