Home / 139,970,070.80-209,955,106.20-130,404,132.80

Finding the Fourth Proportional to 139,970,070.80, 209,955,106.20 and 130,404,132.80

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Solution

The fourth proportional to 139,970,070.80, 209,955,106.20 and 130,404,132.80 is: 195,606,199.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,970,070.80 : 209,955,106.20 = 130,404,132.80 : x
  2. Step 2: Convert to fraction form
    139,970,070.80/209,955,106.20 = 130,404,132.80/x
  3. Step 3: Cross multiply
    139,970,070.80x = 209,955,106.20 × 130,404,132.80
  4. Step 4: Simplify right side
    139,970,070.80x = 27,379,013,550,942,900
  5. Step 5: Solve for x
    x = 27,379,013,550,942,900/139,970,070.80
  6. Step 6: Final answer
    x = 195,606,199.20

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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.