Home / 30,790,155.75-42,490,527.57-16,661,342.40

Finding the Fourth Proportional to 30,790,155.75, 42,490,527.57 and 16,661,342.40

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Solution

The fourth proportional to 30,790,155.75, 42,490,527.57 and 16,661,342.40 is: 22,992,713.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,790,155.75 : 42,490,527.57 = 16,661,342.40 : x
  2. Step 2: Convert to fraction form
    30,790,155.75/42,490,527.57 = 16,661,342.40/x
  3. Step 3: Cross multiply
    30,790,155.75x = 42,490,527.57 × 16,661,342.40
  4. Step 4: Simplify right side
    30,790,155.75x = 707,949,228,600,410
  5. Step 5: Solve for x
    x = 707,949,228,600,410/30,790,155.75
  6. Step 6: Final answer
    x = 22,992,713.46

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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.