Home / 111,359,428.40-167,039,142.60-99,644,106.80

Finding the Fourth Proportional to 111,359,428.40, 167,039,142.60 and 99,644,106.80

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Solution

The fourth proportional to 111,359,428.40, 167,039,142.60 and 99,644,106.80 is: 149,466,160.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,359,428.40 : 167,039,142.60 = 99,644,106.80 : x
  2. Step 2: Convert to fraction form
    111,359,428.40/167,039,142.60 = 99,644,106.80/x
  3. Step 3: Cross multiply
    111,359,428.40x = 167,039,142.60 × 99,644,106.80
  4. Step 4: Simplify right side
    111,359,428.40x = 16,644,466,165,014,828
  5. Step 5: Solve for x
    x = 16,644,466,165,014,828/111,359,428.40
  6. Step 6: Final answer
    x = 149,466,160.20

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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.