Home / 30,680,784.15-42,340,380.51-16,743,037.35

Finding the Fourth Proportional to 30,680,784.15, 42,340,380.51 and 16,743,037.35

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Solution

The fourth proportional to 30,680,784.15, 42,340,380.51 and 16,743,037.35 is: 23,105,881.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,680,784.15 : 42,340,380.51 = 16,743,037.35 : x
  2. Step 2: Convert to fraction form
    30,680,784.15/42,340,380.51 = 16,743,037.35/x
  3. Step 3: Cross multiply
    30,680,784.15x = 42,340,380.51 × 16,743,037.35
  4. Step 4: Simplify right side
    30,680,784.15x = 708,906,572,292,142
  5. Step 5: Solve for x
    x = 708,906,572,292,142/30,680,784.15
  6. Step 6: Final answer
    x = 23,105,881.81

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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.