Home / 354,294,920.70-531,442,381.05-268,201,478.70

Finding the Fourth Proportional to 354,294,920.70, 531,442,381.05 and 268,201,478.70

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Solution

The fourth proportional to 354,294,920.70, 531,442,381.05 and 268,201,478.70 is: 402,302,218.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,294,920.70 : 531,442,381.05 = 268,201,478.70 : x
  2. Step 2: Convert to fraction form
    354,294,920.70/531,442,381.05 = 268,201,478.70/x
  3. Step 3: Cross multiply
    354,294,920.70x = 531,442,381.05 × 268,201,478.70
  4. Step 4: Simplify right side
    354,294,920.70x = 142,533,632,441,458,848
  5. Step 5: Solve for x
    x = 142,533,632,441,458,848/354,294,920.70
  6. Step 6: Final answer
    x = 402,302,218.05

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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.