Home / 368,907,484.47-509,091,897.14-201,644,844.20

Finding the Fourth Proportional to 368,907,484.47, 509,091,897.14 and 201,644,844.20

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Solution

The fourth proportional to 368,907,484.47, 509,091,897.14 and 201,644,844.20 is: 278,269,649.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,907,484.47 : 509,091,897.14 = 201,644,844.20 : x
  2. Step 2: Convert to fraction form
    368,907,484.47/509,091,897.14 = 201,644,844.20/x
  3. Step 3: Cross multiply
    368,907,484.47x = 509,091,897.14 × 201,644,844.20
  4. Step 4: Simplify right side
    368,907,484.47x = 102,655,756,283,166,144
  5. Step 5: Solve for x
    x = 102,655,756,283,166,144/368,907,484.47
  6. Step 6: Final answer
    x = 278,269,649.18

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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.