Home / 386,350,281.92-533,114,996.78-261,174,834.17

Finding the Fourth Proportional to 386,350,281.92, 533,114,996.78 and 261,174,834.17

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Solution

The fourth proportional to 386,350,281.92, 533,114,996.78 and 261,174,834.17 is: 360,388,557.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,350,281.92 : 533,114,996.78 = 261,174,834.17 : x
  2. Step 2: Convert to fraction form
    386,350,281.92/533,114,996.78 = 261,174,834.17/x
  3. Step 3: Cross multiply
    386,350,281.92x = 533,114,996.78 × 261,174,834.17
  4. Step 4: Simplify right side
    386,350,281.92x = 139,236,220,876,075,216
  5. Step 5: Solve for x
    x = 139,236,220,876,075,216/386,350,281.92
  6. Step 6: Final answer
    x = 360,388,557.72

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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.