Home / 221,139,836,160.08-305,383,739,252.40-209,092,278,904.52

Finding the Fourth Proportional to 221,139,836,160.08, 305,383,739,252.40 and 209,092,278,904.52

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Solution

The fourth proportional to 221,139,836,160.08, 305,383,739,252.40 and 209,092,278,904.52 is: 288,746,627,877.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,139,836,160.08 : 305,383,739,252.40 = 209,092,278,904.52 : x
  2. Step 2: Convert to fraction form
    221,139,836,160.08/305,383,739,252.40 = 209,092,278,904.52/x
  3. Step 3: Cross multiply
    221,139,836,160.08x = 305,383,739,252.40 × 209,092,278,904.52
  4. Step 4: Simplify right side
    221,139,836,160.08x = 63,853,381,980,668,037,169,152
  5. Step 5: Solve for x
    x = 63,853,381,980,668,037,169,152/221,139,836,160.08
  6. Step 6: Final answer
    x = 288,746,627,877.78

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1.5x scale

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.