Home / 74,863,886.40-112,295,829.60-21,011,198.40

Finding the Fourth Proportional to 74,863,886.40, 112,295,829.60 and 21,011,198.40

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Solution

The fourth proportional to 74,863,886.40, 112,295,829.60 and 21,011,198.40 is: 31,516,797.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,863,886.40 : 112,295,829.60 = 21,011,198.40 : x
  2. Step 2: Convert to fraction form
    74,863,886.40/112,295,829.60 = 21,011,198.40/x
  3. Step 3: Cross multiply
    74,863,886.40x = 112,295,829.60 × 21,011,198.40
  4. Step 4: Simplify right side
    74,863,886.40x = 2,359,469,955,218,192.50
  5. Step 5: Solve for x
    x = 2,359,469,955,218,192.50/74,863,886.40
  6. Step 6: Final answer
    x = 31,516,797.60

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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.