Home / 28,111,775,349.20-38,794,963,767.15-15,424,507,652.66

Finding the Fourth Proportional to 28,111,775,349.20, 38,794,963,767.15 and 15,424,507,652.66

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Solution

The fourth proportional to 28,111,775,349.20, 38,794,963,767.15 and 15,424,507,652.66 is: 21,286,212,203.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,111,775,349.20 : 38,794,963,767.15 = 15,424,507,652.66 : x
  2. Step 2: Convert to fraction form
    28,111,775,349.20/38,794,963,767.15 = 15,424,507,652.66/x
  3. Step 3: Cross multiply
    28,111,775,349.20x = 38,794,963,767.15 × 15,424,507,652.66
  4. Step 4: Simplify right side
    28,111,775,349.20x = 598,393,215,511,072,604,160
  5. Step 5: Solve for x
    x = 598,393,215,511,072,604,160/28,111,775,349.20
  6. Step 6: Final answer
    x = 21,286,212,203.89

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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.