Home / 42,768,093.70-64,166,828.55-12,480,400.90

Finding the Fourth Proportional to 42,768,093.70, 64,166,828.55 and 12,480,400.90

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Solution

The fourth proportional to 42,768,093.70, 64,166,828.55 and 12,480,400.90 is: 18,724,887.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,768,093.70 : 64,166,828.55 = 12,480,400.90 : x
  2. Step 2: Convert to fraction form
    42,768,093.70/64,166,828.55 = 12,480,400.90/x
  3. Step 3: Cross multiply
    42,768,093.70x = 64,166,828.55 × 12,480,400.90
  4. Step 4: Simplify right side
    42,768,093.70x = 800,827,744,785,565.62
  5. Step 5: Solve for x
    x = 800,827,744,785,565.62/42,768,093.70
  6. Step 6: Final answer
    x = 18,724,887.54

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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.