Home / 430,638,510.70-645,957,766.05-201,055,998.70

Finding the Fourth Proportional to 430,638,510.70, 645,957,766.05 and 201,055,998.70

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Solution

The fourth proportional to 430,638,510.70, 645,957,766.05 and 201,055,998.70 is: 301,583,998.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,638,510.70 : 645,957,766.05 = 201,055,998.70 : x
  2. Step 2: Convert to fraction form
    430,638,510.70/645,957,766.05 = 201,055,998.70/x
  3. Step 3: Cross multiply
    430,638,510.70x = 645,957,766.05 × 201,055,998.70
  4. Step 4: Simplify right side
    430,638,510.70x = 129,873,683,771,203,680
  5. Step 5: Solve for x
    x = 129,873,683,771,203,680/430,638,510.70
  6. Step 6: Final answer
    x = 301,583,998.05

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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.