Home / 431,683,040.70-647,524,561.05-402,772,650.30

Finding the Fourth Proportional to 431,683,040.70, 647,524,561.05 and 402,772,650.30

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Solution

The fourth proportional to 431,683,040.70, 647,524,561.05 and 402,772,650.30 is: 604,158,975.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,683,040.70 : 647,524,561.05 = 402,772,650.30 : x
  2. Step 2: Convert to fraction form
    431,683,040.70/647,524,561.05 = 402,772,650.30/x
  3. Step 3: Cross multiply
    431,683,040.70x = 647,524,561.05 × 402,772,650.30
  4. Step 4: Simplify right side
    431,683,040.70x = 260,805,183,588,452,640
  5. Step 5: Solve for x
    x = 260,805,183,588,452,640/431,683,040.70
  6. Step 6: Final answer
    x = 604,158,975.45

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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.