Home / 30,680,783.15-42,340,379.13-16,743,036.35

Finding the Fourth Proportional to 30,680,783.15, 42,340,379.13 and 16,743,036.35

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Solution

The fourth proportional to 30,680,783.15, 42,340,379.13 and 16,743,036.35 is: 23,105,880.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,680,783.15 : 42,340,379.13 = 16,743,036.35 : x
  2. Step 2: Convert to fraction form
    30,680,783.15/42,340,379.13 = 16,743,036.35/x
  3. Step 3: Cross multiply
    30,680,783.15x = 42,340,379.13 × 16,743,036.35
  4. Step 4: Simplify right side
    30,680,783.15x = 708,906,506,846,371.38
  5. Step 5: Solve for x
    x = 708,906,506,846,371.38/30,680,783.15
  6. Step 6: Final answer
    x = 23,105,880.43

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1.5x scale

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.