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Finding the Fourth Proportional to 65,758,874.22, 90,746,349.03 and 36,388,417.32

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Solution

The fourth proportional to 65,758,874.22, 90,746,349.03 and 36,388,417.32 is: 50,215,519.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,758,874.22 : 90,746,349.03 = 36,388,417.32 : x
  2. Step 2: Convert to fraction form
    65,758,874.22/90,746,349.03 = 36,388,417.32/x
  3. Step 3: Cross multiply
    65,758,874.22x = 90,746,349.03 × 36,388,417.32
  4. Step 4: Simplify right side
    65,758,874.22x = 3,302,116,018,770,017.50
  5. Step 5: Solve for x
    x = 3,302,116,018,770,017.50/65,758,874.22
  6. Step 6: Final answer
    x = 50,215,519.32

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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.