Home / 123,700,639.80-170,702,205.92-68,700,039.24

Finding the Fourth Proportional to 123,700,639.80, 170,702,205.92 and 68,700,039.24

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Solution

The fourth proportional to 123,700,639.80, 170,702,205.92 and 68,700,039.24 is: 94,803,456.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,700,639.80 : 170,702,205.92 = 68,700,039.24 : x
  2. Step 2: Convert to fraction form
    123,700,639.80/170,702,205.92 = 68,700,039.24/x
  3. Step 3: Cross multiply
    123,700,639.80x = 170,702,205.92 × 68,700,039.24
  4. Step 4: Simplify right side
    123,700,639.80x = 11,727,248,245,058,558
  5. Step 5: Solve for x
    x = 11,727,248,245,058,558/123,700,639.80
  6. Step 6: Final answer
    x = 94,803,456.67

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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.