Home / 123,787,048.72-170,829,972.52-68,031,457.48

Finding the Fourth Proportional to 123,787,048.72, 170,829,972.52 and 68,031,457.48

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Solution

The fourth proportional to 123,787,048.72, 170,829,972.52 and 68,031,457.48 is: 93,885,524.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,787,048.72 : 170,829,972.52 = 68,031,457.48 : x
  2. Step 2: Convert to fraction form
    123,787,048.72/170,829,972.52 = 68,031,457.48/x
  3. Step 3: Cross multiply
    123,787,048.72x = 170,829,972.52 × 68,031,457.48
  4. Step 4: Simplify right side
    123,787,048.72x = 11,621,812,011,803,950
  5. Step 5: Solve for x
    x = 11,621,812,011,803,950/123,787,048.72
  6. Step 6: Final answer
    x = 93,885,524.63

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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.