Home / 30,743,730.64-42,426,517.80-16,805,108.08

Finding the Fourth Proportional to 30,743,730.64, 42,426,517.80 and 16,805,108.08

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Solution

The fourth proportional to 30,743,730.64, 42,426,517.80 and 16,805,108.08 is: 23,191,141.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,743,730.64 : 42,426,517.80 = 16,805,108.08 : x
  2. Step 2: Convert to fraction form
    30,743,730.64/42,426,517.80 = 16,805,108.08/x
  3. Step 3: Cross multiply
    30,743,730.64x = 42,426,517.80 × 16,805,108.08
  4. Step 4: Simplify right side
    30,743,730.64x = 712,982,217,087,043.75
  5. Step 5: Solve for x
    x = 712,982,217,087,043.75/30,743,730.64
  6. Step 6: Final answer
    x = 23,191,141.81

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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.