Home / 19,989,867.22-29,984,805.15-7,210,370.86

Finding the Fourth Proportional to 19,989,867.22, 29,984,805.15 and 7,210,370.86

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Solution

The fourth proportional to 19,989,867.22, 29,984,805.15 and 7,210,370.86 is: 10,815,557.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,989,867.22 : 29,984,805.15 = 7,210,370.86 : x
  2. Step 2: Convert to fraction form
    19,989,867.22/29,984,805.15 = 7,210,370.86/x
  3. Step 3: Cross multiply
    19,989,867.22x = 29,984,805.15 × 7,210,370.86
  4. Step 4: Simplify right side
    19,989,867.22x = 216,201,565,296,337.94
  5. Step 5: Solve for x
    x = 216,201,565,296,337.94/19,989,867.22
  6. Step 6: Final answer
    x = 10,815,557.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.