Home / 218,240,967,390.79-301,169,329,812.19-121,898,459,843.38

Finding the Fourth Proportional to 218,240,967,390.79, 301,169,329,812.19 and 121,898,459,843.38

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Solution

The fourth proportional to 218,240,967,390.79, 301,169,329,812.19 and 121,898,459,843.38 is: 168,218,084,327.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,240,967,390.79 : 301,169,329,812.19 = 121,898,459,843.38 : x
  2. Step 2: Convert to fraction form
    218,240,967,390.79/301,169,329,812.19 = 121,898,459,843.38/x
  3. Step 3: Cross multiply
    218,240,967,390.79x = 301,169,329,812.19 × 121,898,459,843.38
  4. Step 4: Simplify right side
    218,240,967,390.79x = 36,712,077,456,168,911,372,288
  5. Step 5: Solve for x
    x = 36,712,077,456,168,911,372,288/218,240,967,390.79
  6. Step 6: Final answer
    x = 168,218,084,327.09

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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.