Home / 72,070,138.39-99,456,260.55-39,029,621.03

Finding the Fourth Proportional to 72,070,138.39, 99,456,260.55 and 39,029,621.03

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Solution

The fourth proportional to 72,070,138.39, 99,456,260.55 and 39,029,621.03 is: 53,860,589.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,070,138.39 : 99,456,260.55 = 39,029,621.03 : x
  2. Step 2: Convert to fraction form
    72,070,138.39/99,456,260.55 = 39,029,621.03/x
  3. Step 3: Cross multiply
    72,070,138.39x = 99,456,260.55 × 39,029,621.03
  4. Step 4: Simplify right side
    72,070,138.39x = 3,881,740,158,327,439.50
  5. Step 5: Solve for x
    x = 3,881,740,158,327,439.50/72,070,138.39
  6. Step 6: Final answer
    x = 53,860,589.77

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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.