Home / 139,523,195.77-209,144,106.89-87,744,802.39

Finding the Fourth Proportional to 139,523,195.77, 209,144,106.89 and 87,744,802.39

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Solution

The fourth proportional to 139,523,195.77, 209,144,106.89 and 87,744,802.39 is: 131,528,727.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,523,195.77 : 209,144,106.89 = 87,744,802.39 : x
  2. Step 2: Convert to fraction form
    139,523,195.77/209,144,106.89 = 87,744,802.39/x
  3. Step 3: Cross multiply
    139,523,195.77x = 209,144,106.89 × 87,744,802.39
  4. Step 4: Simplify right side
    139,523,195.77x = 18,351,308,329,463,544
  5. Step 5: Solve for x
    x = 18,351,308,329,463,544/139,523,195.77
  6. Step 6: Final answer
    x = 131,528,727.02

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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.