Home / 21,173,315.60-31,759,973.40-21,013,883.30

Finding the Fourth Proportional to 21,173,315.60, 31,759,973.40 and 21,013,883.30

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Solution

The fourth proportional to 21,173,315.60, 31,759,973.40 and 21,013,883.30 is: 31,520,824.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,173,315.60 : 31,759,973.40 = 21,013,883.30 : x
  2. Step 2: Convert to fraction form
    21,173,315.60/31,759,973.40 = 21,013,883.30/x
  3. Step 3: Cross multiply
    21,173,315.60x = 31,759,973.40 × 21,013,883.30
  4. Step 4: Simplify right side
    21,173,315.60x = 667,400,374,638,704.25
  5. Step 5: Solve for x
    x = 667,400,374,638,704.25/21,173,315.60
  6. Step 6: Final answer
    x = 31,520,824.95

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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.