Home / 66,213,876.84-91,323,384.84-43,016,478

Finding the Fourth Proportional to 66,213,876.84, 91,323,384.84 and 43,016,478

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Solution

The fourth proportional to 66,213,876.84, 91,323,384.84 and 43,016,478 is: 59,329,109.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,213,876.84 : 91,323,384.84 = 43,016,478 : x
  2. Step 2: Convert to fraction form
    66,213,876.84/91,323,384.84 = 43,016,478/x
  3. Step 3: Cross multiply
    66,213,876.84x = 91,323,384.84 × 43,016,478
  4. Step 4: Simplify right side
    66,213,876.84x = 3,928,410,374,855,393.50
  5. Step 5: Solve for x
    x = 3,928,410,374,855,393.50/66,213,876.84
  6. Step 6: Final answer
    x = 59,329,109.88

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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.