Home / 212,048,641.80-317,886,338.70-143,669,608.20

Finding the Fourth Proportional to 212,048,641.80, 317,886,338.70 and 143,669,608.20

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Solution

The fourth proportional to 212,048,641.80, 317,886,338.70 and 143,669,608.20 is: 215,377,968.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,048,641.80 : 317,886,338.70 = 143,669,608.20 : x
  2. Step 2: Convert to fraction form
    212,048,641.80/317,886,338.70 = 143,669,608.20/x
  3. Step 3: Cross multiply
    212,048,641.80x = 317,886,338.70 × 143,669,608.20
  4. Step 4: Simplify right side
    212,048,641.80x = 45,670,605,733,161,488
  5. Step 5: Solve for x
    x = 45,670,605,733,161,488/212,048,641.80
  6. Step 6: Final answer
    x = 215,377,968.68

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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.