Home / 660,467,605.20-990,697,908.60-169,179,925.20

Finding the Fourth Proportional to 660,467,605.20, 990,697,908.60 and 169,179,925.20

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Solution

The fourth proportional to 660,467,605.20, 990,697,908.60 and 169,179,925.20 is: 253,768,991.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,467,605.20 : 990,697,908.60 = 169,179,925.20 : x
  2. Step 2: Convert to fraction form
    660,467,605.20/990,697,908.60 = 169,179,925.20/x
  3. Step 3: Cross multiply
    660,467,605.20x = 990,697,908.60 × 169,179,925.20
  4. Step 4: Simplify right side
    660,467,605.20x = 167,606,198,072,744,416
  5. Step 5: Solve for x
    x = 167,606,198,072,744,416/660,467,605.20
  6. Step 6: Final answer
    x = 253,768,991.47

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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.