Home / 518,012,036,270.70-714,808,637,018.45-286,520,573,218.07

Finding the Fourth Proportional to 518,012,036,270.70, 714,808,637,018.45 and 286,520,573,218.07

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Solution

The fourth proportional to 518,012,036,270.70, 714,808,637,018.45 and 286,520,573,218.07 is: 395,371,856,403.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,012,036,270.70 : 714,808,637,018.45 = 286,520,573,218.07 : x
  2. Step 2: Convert to fraction form
    518,012,036,270.70/714,808,637,018.45 = 286,520,573,218.07/x
  3. Step 3: Cross multiply
    518,012,036,270.70x = 714,808,637,018.45 × 286,520,573,218.07
  4. Step 4: Simplify right side
    518,012,036,270.70x = 204,807,380,419,753,623,420,928
  5. Step 5: Solve for x
    x = 204,807,380,419,753,623,420,928/518,012,036,270.70
  6. Step 6: Final answer
    x = 395,371,856,403.60

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.