Home / 354,048,528.34-530,769,868.71-135,855,445.78

Finding the Fourth Proportional to 354,048,528.34, 530,769,868.71 and 135,855,445.78

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Solution

The fourth proportional to 354,048,528.34, 530,769,868.71 and 135,855,445.78 is: 203,666,930.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,048,528.34 : 530,769,868.71 = 135,855,445.78 : x
  2. Step 2: Convert to fraction form
    354,048,528.34/530,769,868.71 = 135,855,445.78/x
  3. Step 3: Cross multiply
    354,048,528.34x = 530,769,868.71 × 135,855,445.78
  4. Step 4: Simplify right side
    354,048,528.34x = 72,107,977,120,189,120
  5. Step 5: Solve for x
    x = 72,107,977,120,189,120/354,048,528.34
  6. Step 6: Final answer
    x = 203,666,930.80

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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.