Home / 287,607,612.40-431,411,418.60-239,777,922.40

Finding the Fourth Proportional to 287,607,612.40, 431,411,418.60 and 239,777,922.40

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Solution

The fourth proportional to 287,607,612.40, 431,411,418.60 and 239,777,922.40 is: 359,666,883.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,607,612.40 : 431,411,418.60 = 239,777,922.40 : x
  2. Step 2: Convert to fraction form
    287,607,612.40/431,411,418.60 = 239,777,922.40/x
  3. Step 3: Cross multiply
    287,607,612.40x = 431,411,418.60 × 239,777,922.40
  4. Step 4: Simplify right side
    287,607,612.40x = 103,442,933,651,544,720
  5. Step 5: Solve for x
    x = 103,442,933,651,544,720/287,607,612.40
  6. Step 6: Final answer
    x = 359,666,883.60

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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.