Home / 511,155,219.68-766,732,825.08-122,978,045.51

Finding the Fourth Proportional to 511,155,219.68, 766,732,825.08 and 122,978,045.51

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Solution

The fourth proportional to 511,155,219.68, 766,732,825.08 and 122,978,045.51 is: 184,467,067.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,155,219.68 : 766,732,825.08 = 122,978,045.51 : x
  2. Step 2: Convert to fraction form
    511,155,219.68/766,732,825.08 = 122,978,045.51/x
  3. Step 3: Cross multiply
    511,155,219.68x = 766,732,825.08 × 122,978,045.51
  4. Step 4: Simplify right side
    511,155,219.68x = 94,291,304,252,865,440
  5. Step 5: Solve for x
    x = 94,291,304,252,865,440/511,155,219.68
  6. Step 6: Final answer
    x = 184,467,067.19

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.