Home / 386,831,462.32-533,865,080.28-288,876,257.20

Finding the Fourth Proportional to 386,831,462.32, 533,865,080.28 and 288,876,257.20

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Solution

The fourth proportional to 386,831,462.32, 533,865,080.28 and 288,876,257.20 is: 398,677,360.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,831,462.32 : 533,865,080.28 = 288,876,257.20 : x
  2. Step 2: Convert to fraction form
    386,831,462.32/533,865,080.28 = 288,876,257.20/x
  3. Step 3: Cross multiply
    386,831,462.32x = 533,865,080.28 × 288,876,257.20
  4. Step 4: Simplify right side
    386,831,462.32x = 154,220,946,241,063,904
  5. Step 5: Solve for x
    x = 154,220,946,241,063,904/386,831,462.32
  6. Step 6: Final answer
    x = 398,677,360.20

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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.