Home / 21,070,066.83-31,607,631.90-7,420,393.14

Finding the Fourth Proportional to 21,070,066.83, 31,607,631.90 and 7,420,393.14

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Solution

The fourth proportional to 21,070,066.83, 31,607,631.90 and 7,420,393.14 is: 11,131,481.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,070,066.83 : 31,607,631.90 = 7,420,393.14 : x
  2. Step 2: Convert to fraction form
    21,070,066.83/31,607,631.90 = 7,420,393.14/x
  3. Step 3: Cross multiply
    21,070,066.83x = 31,607,631.90 × 7,420,393.14
  4. Step 4: Simplify right side
    21,070,066.83x = 234,541,054,922,405.16
  5. Step 5: Solve for x
    x = 234,541,054,922,405.16/21,070,066.83
  6. Step 6: Final answer
    x = 11,131,481.30

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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.