Home / 129,345,954.84-178,501,642.38-70,611,751.62

Finding the Fourth Proportional to 129,345,954.84, 178,501,642.38 and 70,611,751.62

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Solution

The fourth proportional to 129,345,954.84, 178,501,642.38 and 70,611,751.62 is: 97,446,523.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,345,954.84 : 178,501,642.38 = 70,611,751.62 : x
  2. Step 2: Convert to fraction form
    129,345,954.84/178,501,642.38 = 70,611,751.62/x
  3. Step 3: Cross multiply
    129,345,954.84x = 178,501,642.38 × 70,611,751.62
  4. Step 4: Simplify right side
    129,345,954.84x = 12,604,313,635,498,626
  5. Step 5: Solve for x
    x = 12,604,313,635,498,626/129,345,954.84
  6. Step 6: Final answer
    x = 97,446,523.56

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.