Home / 218,240,967,391.15-301,169,329,812.72-121,898,459,843.75

Finding the Fourth Proportional to 218,240,967,391.15, 301,169,329,812.72 and 121,898,459,843.75

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Solution

The fourth proportional to 218,240,967,391.15, 301,169,329,812.72 and 121,898,459,843.75 is: 168,218,084,327.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,240,967,391.15 : 301,169,329,812.72 = 121,898,459,843.75 : x
  2. Step 2: Convert to fraction form
    218,240,967,391.15/301,169,329,812.72 = 121,898,459,843.75/x
  3. Step 3: Cross multiply
    218,240,967,391.15x = 301,169,329,812.72 × 121,898,459,843.75
  4. Step 4: Simplify right side
    218,240,967,391.15x = 36,712,077,456,344,946,311,168
  5. Step 5: Solve for x
    x = 36,712,077,456,344,946,311,168/218,240,967,391.15
  6. Step 6: Final answer
    x = 168,218,084,327.62

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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.