Home / 145,152,003.60-217,728,005.40-87,821,110.80

Finding the Fourth Proportional to 145,152,003.60, 217,728,005.40 and 87,821,110.80

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Solution

The fourth proportional to 145,152,003.60, 217,728,005.40 and 87,821,110.80 is: 131,731,666.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,152,003.60 : 217,728,005.40 = 87,821,110.80 : x
  2. Step 2: Convert to fraction form
    145,152,003.60/217,728,005.40 = 87,821,110.80/x
  3. Step 3: Cross multiply
    145,152,003.60x = 217,728,005.40 × 87,821,110.80
  4. Step 4: Simplify right side
    145,152,003.60x = 19,121,115,286,496,400
  5. Step 5: Solve for x
    x = 19,121,115,286,496,400/145,152,003.60
  6. Step 6: Final answer
    x = 131,731,666.20

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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.