Home / 139,982,746.80-209,606,704.20-98,819,907.60

Finding the Fourth Proportional to 139,982,746.80, 209,606,704.20 and 98,819,907.60

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Solution

The fourth proportional to 139,982,746.80, 209,606,704.20 and 98,819,907.60 is: 147,970,486.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,982,746.80 : 209,606,704.20 = 98,819,907.60 : x
  2. Step 2: Convert to fraction form
    139,982,746.80/209,606,704.20 = 98,819,907.60/x
  3. Step 3: Cross multiply
    139,982,746.80x = 209,606,704.20 × 98,819,907.60
  4. Step 4: Simplify right side
    139,982,746.80x = 20,713,315,141,384,528
  5. Step 5: Solve for x
    x = 20,713,315,141,384,528/139,982,746.80
  6. Step 6: Final answer
    x = 147,970,486.47

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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.