Home / 51,358,361.78-70,866,970.40-31,231,091.87

Finding the Fourth Proportional to 51,358,361.78, 70,866,970.40 and 31,231,091.87

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Solution

The fourth proportional to 51,358,361.78, 70,866,970.40 and 31,231,091.87 is: 43,094,304.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,358,361.78 : 70,866,970.40 = 31,231,091.87 : x
  2. Step 2: Convert to fraction form
    51,358,361.78/70,866,970.40 = 31,231,091.87/x
  3. Step 3: Cross multiply
    51,358,361.78x = 70,866,970.40 × 31,231,091.87
  4. Step 4: Simplify right side
    51,358,361.78x = 2,213,252,863,110,971
  5. Step 5: Solve for x
    x = 2,213,252,863,110,971/51,358,361.78
  6. Step 6: Final answer
    x = 43,094,304.15

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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.