Home / 71,575,823.78-107,355,695.52-19,767,791.64

Finding the Fourth Proportional to 71,575,823.78, 107,355,695.52 and 19,767,791.64

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Solution

The fourth proportional to 71,575,823.78, 107,355,695.52 and 19,767,791.64 is: 29,649,466.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,575,823.78 : 107,355,695.52 = 19,767,791.64 : x
  2. Step 2: Convert to fraction form
    71,575,823.78/107,355,695.52 = 19,767,791.64/x
  3. Step 3: Cross multiply
    71,575,823.78x = 107,355,695.52 × 19,767,791.64
  4. Step 4: Simplify right side
    71,575,823.78x = 2,122,185,020,406,641.50
  5. Step 5: Solve for x
    x = 2,122,185,020,406,641.50/71,575,823.78
  6. Step 6: Final answer
    x = 29,649,466.93

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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.