Home / 139,968,131.55-209,952,197.33-103,688,425.95

Finding the Fourth Proportional to 139,968,131.55, 209,952,197.33 and 103,688,425.95

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Solution

The fourth proportional to 139,968,131.55, 209,952,197.33 and 103,688,425.95 is: 155,532,638.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,968,131.55 : 209,952,197.33 = 103,688,425.95 : x
  2. Step 2: Convert to fraction form
    139,968,131.55/209,952,197.33 = 103,688,425.95/x
  3. Step 3: Cross multiply
    139,968,131.55x = 209,952,197.33 × 103,688,425.95
  4. Step 4: Simplify right side
    139,968,131.55x = 21,769,612,865,373,048
  5. Step 5: Solve for x
    x = 21,769,612,865,373,048/139,968,131.55
  6. Step 6: Final answer
    x = 155,532,638.93

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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.