Home / 688,263,078.22-1,032,393,682.38-319,596,436.19

Finding the Fourth Proportional to 688,263,078.22, 1,032,393,682.38 and 319,596,436.19

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Solution

The fourth proportional to 688,263,078.22, 1,032,393,682.38 and 319,596,436.19 is: 479,394,220.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,263,078.22 : 1,032,393,682.38 = 319,596,436.19 : x
  2. Step 2: Convert to fraction form
    688,263,078.22/1,032,393,682.38 = 319,596,436.19/x
  3. Step 3: Cross multiply
    688,263,078.22x = 1,032,393,682.38 × 319,596,436.19
  4. Step 4: Simplify right side
    688,263,078.22x = 329,949,341,637,482,304
  5. Step 5: Solve for x
    x = 329,949,341,637,482,304/688,263,078.22
  6. Step 6: Final answer
    x = 479,394,220.15

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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.