Home / 38,960,830.80-53,767,531.08-21,556,892.88

Finding the Fourth Proportional to 38,960,830.80, 53,767,531.08 and 21,556,892.88

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Solution

The fourth proportional to 38,960,830.80, 53,767,531.08 and 21,556,892.88 is: 29,749,388.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,960,830.80 : 53,767,531.08 = 21,556,892.88 : x
  2. Step 2: Convert to fraction form
    38,960,830.80/53,767,531.08 = 21,556,892.88/x
  3. Step 3: Cross multiply
    38,960,830.80x = 53,767,531.08 × 21,556,892.88
  4. Step 4: Simplify right side
    38,960,830.80x = 1,159,060,907,913,630.50
  5. Step 5: Solve for x
    x = 1,159,060,907,913,630.50/38,960,830.80
  6. Step 6: Final answer
    x = 29,749,388.91

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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.