Home / 21,617,307.40-32,420,867.28-7,963,039.12

Finding the Fourth Proportional to 21,617,307.40, 32,420,867.28 and 7,963,039.12

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Solution

The fourth proportional to 21,617,307.40, 32,420,867.28 and 7,963,039.12 is: 11,942,682.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,617,307.40 : 32,420,867.28 = 7,963,039.12 : x
  2. Step 2: Convert to fraction form
    21,617,307.40/32,420,867.28 = 7,963,039.12/x
  3. Step 3: Cross multiply
    21,617,307.40x = 32,420,867.28 × 7,963,039.12
  4. Step 4: Simplify right side
    21,617,307.40x = 258,168,634,454,968
  5. Step 5: Solve for x
    x = 258,168,634,454,968/21,617,307.40
  6. Step 6: Final answer
    x = 11,942,682.30

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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.