Home / 221,434,020.40-332,151,030.60-217,607,645.20

Finding the Fourth Proportional to 221,434,020.40, 332,151,030.60 and 217,607,645.20

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Solution

The fourth proportional to 221,434,020.40, 332,151,030.60 and 217,607,645.20 is: 326,411,467.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,434,020.40 : 332,151,030.60 = 217,607,645.20 : x
  2. Step 2: Convert to fraction form
    221,434,020.40/332,151,030.60 = 217,607,645.20/x
  3. Step 3: Cross multiply
    221,434,020.40x = 332,151,030.60 × 217,607,645.20
  4. Step 4: Simplify right side
    221,434,020.40x = 72,278,603,619,619,152
  5. Step 5: Solve for x
    x = 72,278,603,619,619,152/221,434,020.40
  6. Step 6: Final answer
    x = 326,411,467.80

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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.