Home / 258,053,721.60-387,080,582.40-193,556,467.20

Finding the Fourth Proportional to 258,053,721.60, 387,080,582.40 and 193,556,467.20

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Solution

The fourth proportional to 258,053,721.60, 387,080,582.40 and 193,556,467.20 is: 290,334,700.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,053,721.60 : 387,080,582.40 = 193,556,467.20 : x
  2. Step 2: Convert to fraction form
    258,053,721.60/387,080,582.40 = 193,556,467.20/x
  3. Step 3: Cross multiply
    258,053,721.60x = 387,080,582.40 × 193,556,467.20
  4. Step 4: Simplify right side
    258,053,721.60x = 74,921,950,051,062,496
  5. Step 5: Solve for x
    x = 74,921,950,051,062,496/258,053,721.60
  6. Step 6: Final answer
    x = 290,334,700.80

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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.