Home / 21,173,451.40-31,760,177.10-19,220,897.80

Finding the Fourth Proportional to 21,173,451.40, 31,760,177.10 and 19,220,897.80

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Solution

The fourth proportional to 21,173,451.40, 31,760,177.10 and 19,220,897.80 is: 28,831,346.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,173,451.40 : 31,760,177.10 = 19,220,897.80 : x
  2. Step 2: Convert to fraction form
    21,173,451.40/31,760,177.10 = 19,220,897.80/x
  3. Step 3: Cross multiply
    21,173,451.40x = 31,760,177.10 × 19,220,897.80
  4. Step 4: Simplify right side
    21,173,451.40x = 610,459,118,149,000.38
  5. Step 5: Solve for x
    x = 610,459,118,149,000.38/21,173,451.40
  6. Step 6: Final answer
    x = 28,831,346.70

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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.