Home / 21,870,001.20-32,805,001.80-21,492,087.60

Finding the Fourth Proportional to 21,870,001.20, 32,805,001.80 and 21,492,087.60

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Solution

The fourth proportional to 21,870,001.20, 32,805,001.80 and 21,492,087.60 is: 32,238,131.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,870,001.20 : 32,805,001.80 = 21,492,087.60 : x
  2. Step 2: Convert to fraction form
    21,870,001.20/32,805,001.80 = 21,492,087.60/x
  3. Step 3: Cross multiply
    21,870,001.20x = 32,805,001.80 × 21,492,087.60
  4. Step 4: Simplify right side
    21,870,001.20x = 705,047,972,403,757.75
  5. Step 5: Solve for x
    x = 705,047,972,403,757.75/21,870,001.20
  6. Step 6: Final answer
    x = 32,238,131.40

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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.