Home / 15,671,643.43-21,628,238.47-8,703,683.31

Finding the Fourth Proportional to 15,671,643.43, 21,628,238.47 and 8,703,683.31

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Solution

The fourth proportional to 15,671,643.43, 21,628,238.47 and 8,703,683.31 is: 12,011,844.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,671,643.43 : 21,628,238.47 = 8,703,683.31 : x
  2. Step 2: Convert to fraction form
    15,671,643.43/21,628,238.47 = 8,703,683.31/x
  3. Step 3: Cross multiply
    15,671,643.43x = 21,628,238.47 × 8,703,683.31
  4. Step 4: Simplify right side
    15,671,643.43x = 188,245,338,123,939.59
  5. Step 5: Solve for x
    x = 188,245,338,123,939.59/15,671,643.43
  6. Step 6: Final answer
    x = 12,011,844.13

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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.