Home / 65,231,971.62-90,020,178.54-35,863,803.78

Finding the Fourth Proportional to 65,231,971.62, 90,020,178.54 and 35,863,803.78

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Solution

The fourth proportional to 65,231,971.62, 90,020,178.54 and 35,863,803.78 is: 49,492,080.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,231,971.62 : 90,020,178.54 = 35,863,803.78 : x
  2. Step 2: Convert to fraction form
    65,231,971.62/90,020,178.54 = 35,863,803.78/x
  3. Step 3: Cross multiply
    65,231,971.62x = 90,020,178.54 × 35,863,803.78
  4. Step 4: Simplify right side
    65,231,971.62x = 3,228,466,019,399,127
  5. Step 5: Solve for x
    x = 3,228,466,019,399,127/65,231,971.62
  6. Step 6: Final answer
    x = 49,492,080.94

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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.