Home / 20,776,938.40-31,165,407.60-18,624,602.35

Finding the Fourth Proportional to 20,776,938.40, 31,165,407.60 and 18,624,602.35

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Solution

The fourth proportional to 20,776,938.40, 31,165,407.60 and 18,624,602.35 is: 27,936,903.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,776,938.40 : 31,165,407.60 = 18,624,602.35 : x
  2. Step 2: Convert to fraction form
    20,776,938.40/31,165,407.60 = 18,624,602.35/x
  3. Step 3: Cross multiply
    20,776,938.40x = 31,165,407.60 × 18,624,602.35
  4. Step 4: Simplify right side
    20,776,938.40x = 580,443,323,625,667.88
  5. Step 5: Solve for x
    x = 580,443,323,625,667.88/20,776,938.40
  6. Step 6: Final answer
    x = 27,936,903.53

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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.