Home / 139,968,136.80-209,952,205.20-117,293,320.80

Finding the Fourth Proportional to 139,968,136.80, 209,952,205.20 and 117,293,320.80

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Solution

The fourth proportional to 139,968,136.80, 209,952,205.20 and 117,293,320.80 is: 175,939,981.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,968,136.80 : 209,952,205.20 = 117,293,320.80 : x
  2. Step 2: Convert to fraction form
    139,968,136.80/209,952,205.20 = 117,293,320.80/x
  3. Step 3: Cross multiply
    139,968,136.80x = 209,952,205.20 × 117,293,320.80
  4. Step 4: Simplify right side
    139,968,136.80x = 24,625,991,357,191,028
  5. Step 5: Solve for x
    x = 24,625,991,357,191,028/139,968,136.80
  6. Step 6: Final answer
    x = 175,939,981.20

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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.