Home / 12,989,573.75-17,925,659.30-7,028,980.58

Finding the Fourth Proportional to 12,989,573.75, 17,925,659.30 and 7,028,980.58

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Solution

The fourth proportional to 12,989,573.75, 17,925,659.30 and 7,028,980.58 is: 9,700,018.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,989,573.75 : 17,925,659.30 = 7,028,980.58 : x
  2. Step 2: Convert to fraction form
    12,989,573.75/17,925,659.30 = 7,028,980.58/x
  3. Step 3: Cross multiply
    12,989,573.75x = 17,925,659.30 × 7,028,980.58
  4. Step 4: Simplify right side
    12,989,573.75x = 125,999,111,103,396.41
  5. Step 5: Solve for x
    x = 125,999,111,103,396.41/12,989,573.75
  6. Step 6: Final answer
    x = 9,700,018.92

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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.