Home / 76,033,643.40-113,718,689.10-68,004,664.20

Finding the Fourth Proportional to 76,033,643.40, 113,718,689.10 and 68,004,664.20

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Solution

The fourth proportional to 76,033,643.40, 113,718,689.10 and 68,004,664.20 is: 101,710,255.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,033,643.40 : 113,718,689.10 = 68,004,664.20 : x
  2. Step 2: Convert to fraction form
    76,033,643.40/113,718,689.10 = 68,004,664.20/x
  3. Step 3: Cross multiply
    76,033,643.40x = 113,718,689.10 × 68,004,664.20
  4. Step 4: Simplify right side
    76,033,643.40x = 7,733,401,265,509,700
  5. Step 5: Solve for x
    x = 7,733,401,265,509,700/76,033,643.40
  6. Step 6: Final answer
    x = 101,710,255.09

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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.