Home / 30,438,643.26-42,007,971.42-16,690,264.59

Finding the Fourth Proportional to 30,438,643.26, 42,007,971.42 and 16,690,264.59

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Solution

The fourth proportional to 30,438,643.26, 42,007,971.42 and 16,690,264.59 is: 23,034,014.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,438,643.26 : 42,007,971.42 = 16,690,264.59 : x
  2. Step 2: Convert to fraction form
    30,438,643.26/42,007,971.42 = 16,690,264.59/x
  3. Step 3: Cross multiply
    30,438,643.26x = 42,007,971.42 × 16,690,264.59
  4. Step 4: Simplify right side
    30,438,643.26x = 701,124,157,888,958
  5. Step 5: Solve for x
    x = 701,124,157,888,958/30,438,643.26
  6. Step 6: Final answer
    x = 23,034,014.75

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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.