Home / 90,618,055.62-135,994,777.58-61,402,621.78

Finding the Fourth Proportional to 90,618,055.62, 135,994,777.58 and 61,402,621.78

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Solution

The fourth proportional to 90,618,055.62, 135,994,777.58 and 61,402,621.78 is: 92,149,802.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,618,055.62 : 135,994,777.58 = 61,402,621.78 : x
  2. Step 2: Convert to fraction form
    90,618,055.62/135,994,777.58 = 61,402,621.78/x
  3. Step 3: Cross multiply
    90,618,055.62x = 135,994,777.58 × 61,402,621.78
  4. Step 4: Simplify right side
    90,618,055.62x = 8,350,435,891,799,965
  5. Step 5: Solve for x
    x = 8,350,435,891,799,965/90,618,055.62
  6. Step 6: Final answer
    x = 92,149,802.10

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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.