Home / 21,167,386.60-31,769,742.30-18,144,077.80

Finding the Fourth Proportional to 21,167,386.60, 31,769,742.30 and 18,144,077.80

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Solution

The fourth proportional to 21,167,386.60, 31,769,742.30 and 18,144,077.80 is: 27,232,113.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,167,386.60 : 31,769,742.30 = 18,144,077.80 : x
  2. Step 2: Convert to fraction form
    21,167,386.60/31,769,742.30 = 18,144,077.80/x
  3. Step 3: Cross multiply
    21,167,386.60x = 31,769,742.30 × 18,144,077.80
  4. Step 4: Simplify right side
    21,167,386.60x = 576,432,675,977,151
  5. Step 5: Solve for x
    x = 576,432,675,977,151/21,167,386.60
  6. Step 6: Final answer
    x = 27,232,113.58

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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.