Home / 615,883,048.88-849,709,355.27-351,375,021.68

Finding the Fourth Proportional to 615,883,048.88, 849,709,355.27 and 351,375,021.68

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Solution

The fourth proportional to 615,883,048.88, 849,709,355.27 and 351,375,021.68 is: 484,778,146.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,883,048.88 : 849,709,355.27 = 351,375,021.68 : x
  2. Step 2: Convert to fraction form
    615,883,048.88/849,709,355.27 = 351,375,021.68/x
  3. Step 3: Cross multiply
    615,883,048.88x = 849,709,355.27 × 351,375,021.68
  4. Step 4: Simplify right side
    615,883,048.88x = 298,566,643,123,689,664
  5. Step 5: Solve for x
    x = 298,566,643,123,689,664/615,883,048.88
  6. Step 6: Final answer
    x = 484,778,146.87

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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.