Home / 289,991,322.50-400,188,002.76-157,833,266.63

Finding the Fourth Proportional to 289,991,322.50, 400,188,002.76 and 157,833,266.63

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Solution

The fourth proportional to 289,991,322.50, 400,188,002.76 and 157,833,266.63 is: 217,809,895.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,991,322.50 : 400,188,002.76 = 157,833,266.63 : x
  2. Step 2: Convert to fraction form
    289,991,322.50/400,188,002.76 = 157,833,266.63/x
  3. Step 3: Cross multiply
    289,991,322.50x = 400,188,002.76 × 157,833,266.63
  4. Step 4: Simplify right side
    289,991,322.50x = 63,162,979,739,745,312
  5. Step 5: Solve for x
    x = 63,162,979,739,745,312/289,991,322.50
  6. Step 6: Final answer
    x = 217,809,895.81

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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.