Home / 78,084,623.55-117,126,935.33-39,820,871.55

Finding the Fourth Proportional to 78,084,623.55, 117,126,935.33 and 39,820,871.55

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Solution

The fourth proportional to 78,084,623.55, 117,126,935.33 and 39,820,871.55 is: 59,731,307.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,084,623.55 : 117,126,935.33 = 39,820,871.55 : x
  2. Step 2: Convert to fraction form
    78,084,623.55/117,126,935.33 = 39,820,871.55/x
  3. Step 3: Cross multiply
    78,084,623.55x = 117,126,935.33 × 39,820,871.55
  4. Step 4: Simplify right side
    78,084,623.55x = 4,664,096,646,621,982
  5. Step 5: Solve for x
    x = 4,664,096,646,621,982/78,084,623.55
  6. Step 6: Final answer
    x = 59,731,307.33

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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.