Home / 30,790,156.75-42,490,528.95-16,661,343.40

Finding the Fourth Proportional to 30,790,156.75, 42,490,528.95 and 16,661,343.40

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Solution

The fourth proportional to 30,790,156.75, 42,490,528.95 and 16,661,343.40 is: 22,992,714.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,790,156.75 : 42,490,528.95 = 16,661,343.40 : x
  2. Step 2: Convert to fraction form
    30,790,156.75/42,490,528.95 = 16,661,343.40/x
  3. Step 3: Cross multiply
    30,790,156.75x = 42,490,528.95 × 16,661,343.40
  4. Step 4: Simplify right side
    30,790,156.75x = 707,949,294,083,591.50
  5. Step 5: Solve for x
    x = 707,949,294,083,591.50/30,790,156.75
  6. Step 6: Final answer
    x = 22,992,714.84

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Double scale
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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.