Home / 21,286,003.80-31,929,005.70-6,140,429.40

Finding the Fourth Proportional to 21,286,003.80, 31,929,005.70 and 6,140,429.40

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Solution

The fourth proportional to 21,286,003.80, 31,929,005.70 and 6,140,429.40 is: 9,210,644.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,286,003.80 : 31,929,005.70 = 6,140,429.40 : x
  2. Step 2: Convert to fraction form
    21,286,003.80/31,929,005.70 = 6,140,429.40/x
  3. Step 3: Cross multiply
    21,286,003.80x = 31,929,005.70 × 6,140,429.40
  4. Step 4: Simplify right side
    21,286,003.80x = 196,057,805,313,047.59
  5. Step 5: Solve for x
    x = 196,057,805,313,047.59/21,286,003.80
  6. Step 6: Final answer
    x = 9,210,644.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.