Home / 78,769,000.18-108,600,170.32-64,587,939.45

Finding the Fourth Proportional to 78,769,000.18, 108,600,170.32 and 64,587,939.45

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Solution

The fourth proportional to 78,769,000.18, 108,600,170.32 and 64,587,939.45 is: 89,048,498.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,769,000.18 : 108,600,170.32 = 64,587,939.45 : x
  2. Step 2: Convert to fraction form
    78,769,000.18/108,600,170.32 = 64,587,939.45/x
  3. Step 3: Cross multiply
    78,769,000.18x = 108,600,170.32 × 64,587,939.45
  4. Step 4: Simplify right side
    78,769,000.18x = 7,014,261,224,726,377
  5. Step 5: Solve for x
    x = 7,014,261,224,726,377/78,769,000.18
  6. Step 6: Final answer
    x = 89,048,498.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.