Home / 155,978,324.02-215,262,206.22-86,370,181.30

Finding the Fourth Proportional to 155,978,324.02, 215,262,206.22 and 86,370,181.30

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Solution

The fourth proportional to 155,978,324.02, 215,262,206.22 and 86,370,181.30 is: 119,197,560.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,978,324.02 : 215,262,206.22 = 86,370,181.30 : x
  2. Step 2: Convert to fraction form
    155,978,324.02/215,262,206.22 = 86,370,181.30/x
  3. Step 3: Cross multiply
    155,978,324.02x = 215,262,206.22 × 86,370,181.30
  4. Step 4: Simplify right side
    155,978,324.02x = 18,592,235,778,259,388
  5. Step 5: Solve for x
    x = 18,592,235,778,259,388/155,978,324.02
  6. Step 6: Final answer
    x = 119,197,560.91

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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.