Home / 399,034,861,462.50-550,663,721,910.09-216,127,413,026.34

Finding the Fourth Proportional to 399,034,861,462.50, 550,663,721,910.09 and 216,127,413,026.34

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Solution

The fourth proportional to 399,034,861,462.50, 550,663,721,910.09 and 216,127,413,026.34 is: 298,253,453,915.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,034,861,462.50 : 550,663,721,910.09 = 216,127,413,026.34 : x
  2. Step 2: Convert to fraction form
    399,034,861,462.50/550,663,721,910.09 = 216,127,413,026.34/x
  3. Step 3: Cross multiply
    399,034,861,462.50x = 550,663,721,910.09 × 216,127,413,026.34
  4. Step 4: Simplify right side
    399,034,861,462.50x = 119,013,525,663,883,638,865,920
  5. Step 5: Solve for x
    x = 119,013,525,663,883,638,865,920/399,034,861,462.50
  6. Step 6: Final answer
    x = 298,253,453,915.50

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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.