Home / 30,578,541.75-42,198,394.47-16,827,505.86

Finding the Fourth Proportional to 30,578,541.75, 42,198,394.47 and 16,827,505.86

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Solution

The fourth proportional to 30,578,541.75, 42,198,394.47 and 16,827,505.86 is: 23,221,961.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,578,541.75 : 42,198,394.47 = 16,827,505.86 : x
  2. Step 2: Convert to fraction form
    30,578,541.75/42,198,394.47 = 16,827,505.86/x
  3. Step 3: Cross multiply
    30,578,541.75x = 42,198,394.47 × 16,827,505.86
  4. Step 4: Simplify right side
    30,578,541.75x = 710,093,730,226,516.50
  5. Step 5: Solve for x
    x = 710,093,730,226,516.50/30,578,541.75
  6. Step 6: Final answer
    x = 23,221,961.86

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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.