Home / 30,602,942.91-42,232,057.16-16,851,873.15

Finding the Fourth Proportional to 30,602,942.91, 42,232,057.16 and 16,851,873.15

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Solution

The fourth proportional to 30,602,942.91, 42,232,057.16 and 16,851,873.15 is: 23,255,582.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,602,942.91 : 42,232,057.16 = 16,851,873.15 : x
  2. Step 2: Convert to fraction form
    30,602,942.91/42,232,057.16 = 16,851,873.15/x
  3. Step 3: Cross multiply
    30,602,942.91x = 42,232,057.16 × 16,851,873.15
  4. Step 4: Simplify right side
    30,602,942.91x = 711,689,270,039,609.88
  5. Step 5: Solve for x
    x = 711,689,270,039,609.88/30,602,942.91
  6. Step 6: Final answer
    x = 23,255,582.71

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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.