Home / 660,601,578.60-990,870,875.10-223,859,428.20

Finding the Fourth Proportional to 660,601,578.60, 990,870,875.10 and 223,859,428.20

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Solution

The fourth proportional to 660,601,578.60, 990,870,875.10 and 223,859,428.20 is: 335,778,470.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,601,578.60 : 990,870,875.10 = 223,859,428.20 : x
  2. Step 2: Convert to fraction form
    660,601,578.60/990,870,875.10 = 223,859,428.20/x
  3. Step 3: Cross multiply
    660,601,578.60x = 990,870,875.10 × 223,859,428.20
  4. Step 4: Simplify right side
    660,601,578.60x = 221,815,787,519,919,616
  5. Step 5: Solve for x
    x = 221,815,787,519,919,616/660,601,578.60
  6. Step 6: Final answer
    x = 335,778,470.27

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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.