Home / 21,173,742.86-31,763,763.57-9,815,339.66

Finding the Fourth Proportional to 21,173,742.86, 31,763,763.57 and 9,815,339.66

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Solution

The fourth proportional to 21,173,742.86, 31,763,763.57 and 9,815,339.66 is: 14,724,469.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,173,742.86 : 31,763,763.57 = 9,815,339.66 : x
  2. Step 2: Convert to fraction form
    21,173,742.86/31,763,763.57 = 9,815,339.66/x
  3. Step 3: Cross multiply
    21,173,742.86x = 31,763,763.57 × 9,815,339.66
  4. Step 4: Simplify right side
    21,173,742.86x = 311,772,128,319,484.19
  5. Step 5: Solve for x
    x = 311,772,128,319,484.19/21,173,742.86
  6. Step 6: Final answer
    x = 14,724,469.38

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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.