Home / 661,158,664.40-991,737,996.60-201,096,095.60

Finding the Fourth Proportional to 661,158,664.40, 991,737,996.60 and 201,096,095.60

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Solution

The fourth proportional to 661,158,664.40, 991,737,996.60 and 201,096,095.60 is: 301,644,143.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,158,664.40 : 991,737,996.60 = 201,096,095.60 : x
  2. Step 2: Convert to fraction form
    661,158,664.40/991,737,996.60 = 201,096,095.60/x
  3. Step 3: Cross multiply
    661,158,664.40x = 991,737,996.60 × 201,096,095.60
  4. Step 4: Simplify right side
    661,158,664.40x = 199,434,638,974,426,080
  5. Step 5: Solve for x
    x = 199,434,638,974,426,080/661,158,664.40
  6. Step 6: Final answer
    x = 301,644,143.40

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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.