Home / 78,880,986.70-118,321,480.05-73,572,570.70

Finding the Fourth Proportional to 78,880,986.70, 118,321,480.05 and 73,572,570.70

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Solution

The fourth proportional to 78,880,986.70, 118,321,480.05 and 73,572,570.70 is: 110,358,856.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,880,986.70 : 118,321,480.05 = 73,572,570.70 : x
  2. Step 2: Convert to fraction form
    78,880,986.70/118,321,480.05 = 73,572,570.70/x
  3. Step 3: Cross multiply
    78,880,986.70x = 118,321,480.05 × 73,572,570.70
  4. Step 4: Simplify right side
    78,880,986.70x = 8,705,215,456,307,265
  5. Step 5: Solve for x
    x = 8,705,215,456,307,265/78,880,986.70
  6. Step 6: Final answer
    x = 110,358,856.05

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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.