Home / 10,139,009.76-15,188,916.60-5,637,638.88

Finding the Fourth Proportional to 10,139,009.76, 15,188,916.60 and 5,637,638.88

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Solution

The fourth proportional to 10,139,009.76, 15,188,916.60 and 5,637,638.88 is: 8,445,561.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,139,009.76 : 15,188,916.60 = 5,637,638.88 : x
  2. Step 2: Convert to fraction form
    10,139,009.76/15,188,916.60 = 5,637,638.88/x
  3. Step 3: Cross multiply
    10,139,009.76x = 15,188,916.60 × 5,637,638.88
  4. Step 4: Simplify right side
    10,139,009.76x = 85,629,626,769,237.41
  5. Step 5: Solve for x
    x = 85,629,626,769,237.41/10,139,009.76
  6. Step 6: Final answer
    x = 8,445,561.13

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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.