Home / 139,968,126.40-209,952,189.60-89,075,761.60

Finding the Fourth Proportional to 139,968,126.40, 209,952,189.60 and 89,075,761.60

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Solution

The fourth proportional to 139,968,126.40, 209,952,189.60 and 89,075,761.60 is: 133,613,642.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,968,126.40 : 209,952,189.60 = 89,075,761.60 : x
  2. Step 2: Convert to fraction form
    139,968,126.40/209,952,189.60 = 89,075,761.60/x
  3. Step 3: Cross multiply
    139,968,126.40x = 209,952,189.60 × 89,075,761.60
  4. Step 4: Simplify right side
    139,968,126.40x = 18,701,651,188,207,596
  5. Step 5: Solve for x
    x = 18,701,651,188,207,596/139,968,126.40
  6. Step 6: Final answer
    x = 133,613,642.40

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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.