Home / 469,127,812.91-647,406,269.96-257,432,791.91

Finding the Fourth Proportional to 469,127,812.91, 647,406,269.96 and 257,432,791.91

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Solution

The fourth proportional to 469,127,812.91, 647,406,269.96 and 257,432,791.91 is: 355,262,678.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,127,812.91 : 647,406,269.96 = 257,432,791.91 : x
  2. Step 2: Convert to fraction form
    469,127,812.91/647,406,269.96 = 257,432,791.91/x
  3. Step 3: Cross multiply
    469,127,812.91x = 647,406,269.96 × 257,432,791.91
  4. Step 4: Simplify right side
    469,127,812.91x = 166,663,603,571,317,792
  5. Step 5: Solve for x
    x = 166,663,603,571,317,792/469,127,812.91
  6. Step 6: Final answer
    x = 355,262,678.93

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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.