Home / 20,760,271.60-31,140,407.40-8,625,702.10

Finding the Fourth Proportional to 20,760,271.60, 31,140,407.40 and 8,625,702.10

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Solution

The fourth proportional to 20,760,271.60, 31,140,407.40 and 8,625,702.10 is: 12,938,553.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,760,271.60 : 31,140,407.40 = 8,625,702.10 : x
  2. Step 2: Convert to fraction form
    20,760,271.60/31,140,407.40 = 8,625,702.10/x
  3. Step 3: Cross multiply
    20,760,271.60x = 31,140,407.40 × 8,625,702.10
  4. Step 4: Simplify right side
    20,760,271.60x = 268,607,877,505,035.50
  5. Step 5: Solve for x
    x = 268,607,877,505,035.50/20,760,271.60
  6. Step 6: Final answer
    x = 12,938,553.15

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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.