Home / 518,012,036,270.20-714,808,637,017.75-286,520,573,217.57

Finding the Fourth Proportional to 518,012,036,270.20, 714,808,637,017.75 and 286,520,573,217.57

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Solution

The fourth proportional to 518,012,036,270.20, 714,808,637,017.75 and 286,520,573,217.57 is: 395,371,856,402.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,012,036,270.20 : 714,808,637,017.75 = 286,520,573,217.57 : x
  2. Step 2: Convert to fraction form
    518,012,036,270.20/714,808,637,017.75 = 286,520,573,217.57/x
  3. Step 3: Cross multiply
    518,012,036,270.20x = 714,808,637,017.75 × 286,520,573,217.57
  4. Step 4: Simplify right side
    518,012,036,270.20x = 204,807,380,419,195,646,771,200
  5. Step 5: Solve for x
    x = 204,807,380,419,195,646,771,200/518,012,036,270.20
  6. Step 6: Final answer
    x = 395,371,856,402.90

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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.