Home / 422,397,546,751.72-633,875,454,343.98-198,871,421,185

Finding the Fourth Proportional to 422,397,546,751.72, 633,875,454,343.98 and 198,871,421,185

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Solution

The fourth proportional to 422,397,546,751.72, 633,875,454,343.98 and 198,871,421,185 is: 298,438,552,565.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,397,546,751.72 : 633,875,454,343.98 = 198,871,421,185 : x
  2. Step 2: Convert to fraction form
    422,397,546,751.72/633,875,454,343.98 = 198,871,421,185/x
  3. Step 3: Cross multiply
    422,397,546,751.72x = 633,875,454,343.98 × 198,871,421,185
  4. Step 4: Simplify right side
    422,397,546,751.72x = 126,059,712,459,674,883,194,880
  5. Step 5: Solve for x
    x = 126,059,712,459,674,883,194,880/422,397,546,751.72
  6. Step 6: Final answer
    x = 298,438,552,565.20

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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.