Home / 12,112,894.32-16,711,572.78-7,764,378.36

Finding the Fourth Proportional to 12,112,894.32, 16,711,572.78 and 7,764,378.36

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Solution

The fourth proportional to 12,112,894.32, 16,711,572.78 and 7,764,378.36 is: 10,712,136.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,112,894.32 : 16,711,572.78 = 7,764,378.36 : x
  2. Step 2: Convert to fraction form
    12,112,894.32/16,711,572.78 = 7,764,378.36/x
  3. Step 3: Cross multiply
    12,112,894.32x = 16,711,572.78 × 7,764,378.36
  4. Step 4: Simplify right side
    12,112,894.32x = 129,754,974,054,597.05
  5. Step 5: Solve for x
    x = 129,754,974,054,597.05/12,112,894.32
  6. Step 6: Final answer
    x = 10,712,136.23

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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.