Home / 221,616,733.60-332,425,100.40-209,712,455.20

Finding the Fourth Proportional to 221,616,733.60, 332,425,100.40 and 209,712,455.20

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Solution

The fourth proportional to 221,616,733.60, 332,425,100.40 and 209,712,455.20 is: 314,568,682.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,616,733.60 : 332,425,100.40 = 209,712,455.20 : x
  2. Step 2: Convert to fraction form
    221,616,733.60/332,425,100.40 = 209,712,455.20/x
  3. Step 3: Cross multiply
    221,616,733.60x = 332,425,100.40 × 209,712,455.20
  4. Step 4: Simplify right side
    221,616,733.60x = 69,713,683,974,990,496
  5. Step 5: Solve for x
    x = 69,713,683,974,990,496/221,616,733.60
  6. Step 6: Final answer
    x = 314,568,682.80

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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.