Home / 54,357,627.29-81,525,915.88-21,120,783.08

Finding the Fourth Proportional to 54,357,627.29, 81,525,915.88 and 21,120,783.08

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Solution

The fourth proportional to 54,357,627.29, 81,525,915.88 and 21,120,783.08 is: 31,677,085.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,357,627.29 : 81,525,915.88 = 21,120,783.08 : x
  2. Step 2: Convert to fraction form
    54,357,627.29/81,525,915.88 = 21,120,783.08/x
  3. Step 3: Cross multiply
    54,357,627.29x = 81,525,915.88 × 21,120,783.08
  4. Step 4: Simplify right side
    54,357,627.29x = 1,721,891,184,239,375.75
  5. Step 5: Solve for x
    x = 1,721,891,184,239,375.75/54,357,627.29
  6. Step 6: Final answer
    x = 31,677,085.08

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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.