Home / 201,442,905.40-302,164,358.10-140,220,902.20

Finding the Fourth Proportional to 201,442,905.40, 302,164,358.10 and 140,220,902.20

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Solution

The fourth proportional to 201,442,905.40, 302,164,358.10 and 140,220,902.20 is: 210,331,353.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,442,905.40 : 302,164,358.10 = 140,220,902.20 : x
  2. Step 2: Convert to fraction form
    201,442,905.40/302,164,358.10 = 140,220,902.20/x
  3. Step 3: Cross multiply
    201,442,905.40x = 302,164,358.10 × 140,220,902.20
  4. Step 4: Simplify right side
    201,442,905.40x = 42,369,758,905,465,880
  5. Step 5: Solve for x
    x = 42,369,758,905,465,880/201,442,905.40
  6. Step 6: Final answer
    x = 210,331,353.30

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1.5x scale

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.