Home / 209,148,859.87-313,117,460.89-157,550,768.80

Finding the Fourth Proportional to 209,148,859.87, 313,117,460.89 and 157,550,768.80

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Solution

The fourth proportional to 209,148,859.87, 313,117,460.89 and 157,550,768.80 is: 235,869,785.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,148,859.87 : 313,117,460.89 = 157,550,768.80 : x
  2. Step 2: Convert to fraction form
    209,148,859.87/313,117,460.89 = 157,550,768.80/x
  3. Step 3: Cross multiply
    209,148,859.87x = 313,117,460.89 × 157,550,768.80
  4. Step 4: Simplify right side
    209,148,859.87x = 49,331,896,686,746,768
  5. Step 5: Solve for x
    x = 49,331,896,686,746,768/209,148,859.87
  6. Step 6: Final answer
    x = 235,869,785.37

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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.