Home / 206,871,943.60-310,307,915.40-189,403,937.20

Finding the Fourth Proportional to 206,871,943.60, 310,307,915.40 and 189,403,937.20

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Solution

The fourth proportional to 206,871,943.60, 310,307,915.40 and 189,403,937.20 is: 284,105,905.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,871,943.60 : 310,307,915.40 = 189,403,937.20 : x
  2. Step 2: Convert to fraction form
    206,871,943.60/310,307,915.40 = 189,403,937.20/x
  3. Step 3: Cross multiply
    206,871,943.60x = 310,307,915.40 × 189,403,937.20
  4. Step 4: Simplify right side
    206,871,943.60x = 58,773,540,921,084,504
  5. Step 5: Solve for x
    x = 58,773,540,921,084,504/206,871,943.60
  6. Step 6: Final answer
    x = 284,105,905.80

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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.