Home / 257,733,497.39-355,683,938.65-151,891,379.78

Finding the Fourth Proportional to 257,733,497.39, 355,683,938.65 and 151,891,379.78

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Solution

The fourth proportional to 257,733,497.39, 355,683,938.65 and 151,891,379.78 is: 209,617,006.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,733,497.39 : 355,683,938.65 = 151,891,379.78 : x
  2. Step 2: Convert to fraction form
    257,733,497.39/355,683,938.65 = 151,891,379.78/x
  3. Step 3: Cross multiply
    257,733,497.39x = 355,683,938.65 × 151,891,379.78
  4. Step 4: Simplify right side
    257,733,497.39x = 54,025,324,206,373,912
  5. Step 5: Solve for x
    x = 54,025,324,206,373,912/257,733,497.39
  6. Step 6: Final answer
    x = 209,617,006.53

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.