Home / 7,171,312.32-9,896,412.24-3,908,127.60

Finding the Fourth Proportional to 7,171,312.32, 9,896,412.24 and 3,908,127.60

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Solution

The fourth proportional to 7,171,312.32, 9,896,412.24 and 3,908,127.60 is: 5,393,216.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,171,312.32 : 9,896,412.24 = 3,908,127.60 : x
  2. Step 2: Convert to fraction form
    7,171,312.32/9,896,412.24 = 3,908,127.60/x
  3. Step 3: Cross multiply
    7,171,312.32x = 9,896,412.24 × 3,908,127.60
  4. Step 4: Simplify right side
    7,171,312.32x = 38,676,441,816,121.83
  5. Step 5: Solve for x
    x = 38,676,441,816,121.83/7,171,312.32
  6. Step 6: Final answer
    x = 5,393,216.76

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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.