Home / 78,314,799.80-117,360,225.30-57,683,516.60

Finding the Fourth Proportional to 78,314,799.80, 117,360,225.30 and 57,683,516.60

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Solution

The fourth proportional to 78,314,799.80, 117,360,225.30 and 57,683,516.60 is: 86,442,799.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,314,799.80 : 117,360,225.30 = 57,683,516.60 : x
  2. Step 2: Convert to fraction form
    78,314,799.80/117,360,225.30 = 57,683,516.60/x
  3. Step 3: Cross multiply
    78,314,799.80x = 117,360,225.30 × 57,683,516.60
  4. Step 4: Simplify right side
    78,314,799.80x = 6,769,750,504,272,290
  5. Step 5: Solve for x
    x = 6,769,750,504,272,290/78,314,799.80
  6. Step 6: Final answer
    x = 86,442,799.08

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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.