Home / 79,781,608.40-119,672,412.60-31,243,330.40

Finding the Fourth Proportional to 79,781,608.40, 119,672,412.60 and 31,243,330.40

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Solution

The fourth proportional to 79,781,608.40, 119,672,412.60 and 31,243,330.40 is: 46,864,995.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,781,608.40 : 119,672,412.60 = 31,243,330.40 : x
  2. Step 2: Convert to fraction form
    79,781,608.40/119,672,412.60 = 31,243,330.40/x
  3. Step 3: Cross multiply
    79,781,608.40x = 119,672,412.60 × 31,243,330.40
  4. Step 4: Simplify right side
    79,781,608.40x = 3,738,964,726,626,922.50
  5. Step 5: Solve for x
    x = 3,738,964,726,626,922.50/79,781,608.40
  6. Step 6: Final answer
    x = 46,864,995.60

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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.