Home / 78,076,971.23-107,611,732.91-51,924,759.62

Finding the Fourth Proportional to 78,076,971.23, 107,611,732.91 and 51,924,759.62

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Solution

The fourth proportional to 78,076,971.23, 107,611,732.91 and 51,924,759.62 is: 71,566,728.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,076,971.23 : 107,611,732.91 = 51,924,759.62 : x
  2. Step 2: Convert to fraction form
    78,076,971.23/107,611,732.91 = 51,924,759.62/x
  3. Step 3: Cross multiply
    78,076,971.23x = 107,611,732.91 × 51,924,759.62
  4. Step 4: Simplify right side
    78,076,971.23x = 5,587,713,363,235,146
  5. Step 5: Solve for x
    x = 5,587,713,363,235,146/78,076,971.23
  6. Step 6: Final answer
    x = 71,566,728.01

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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.