Home / 258,623,787.60-387,935,681.40-248,420,120.40

Finding the Fourth Proportional to 258,623,787.60, 387,935,681.40 and 248,420,120.40

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Solution

The fourth proportional to 258,623,787.60, 387,935,681.40 and 248,420,120.40 is: 372,630,180.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,623,787.60 : 387,935,681.40 = 248,420,120.40 : x
  2. Step 2: Convert to fraction form
    258,623,787.60/387,935,681.40 = 248,420,120.40/x
  3. Step 3: Cross multiply
    258,623,787.60x = 387,935,681.40 × 248,420,120.40
  4. Step 4: Simplify right side
    258,623,787.60x = 96,371,028,680,844,032
  5. Step 5: Solve for x
    x = 96,371,028,680,844,032/258,623,787.60
  6. Step 6: Final answer
    x = 372,630,180.60

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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.