Home / 221,617,503.60-332,426,255.40-129,784,498.80

Finding the Fourth Proportional to 221,617,503.60, 332,426,255.40 and 129,784,498.80

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Solution

The fourth proportional to 221,617,503.60, 332,426,255.40 and 129,784,498.80 is: 194,676,748.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,617,503.60 : 332,426,255.40 = 129,784,498.80 : x
  2. Step 2: Convert to fraction form
    221,617,503.60/332,426,255.40 = 129,784,498.80/x
  3. Step 3: Cross multiply
    221,617,503.60x = 332,426,255.40 × 129,784,498.80
  4. Step 4: Simplify right side
    221,617,503.60x = 43,143,774,945,049,792
  5. Step 5: Solve for x
    x = 43,143,774,945,049,792/221,617,503.60
  6. Step 6: Final answer
    x = 194,676,748.20

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1.5x scale

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.