Home / 18,683,931.40-28,025,897.10-15,707,861.80

Finding the Fourth Proportional to 18,683,931.40, 28,025,897.10 and 15,707,861.80

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Solution

The fourth proportional to 18,683,931.40, 28,025,897.10 and 15,707,861.80 is: 23,561,792.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,683,931.40 : 28,025,897.10 = 15,707,861.80 : x
  2. Step 2: Convert to fraction form
    18,683,931.40/28,025,897.10 = 15,707,861.80/x
  3. Step 3: Cross multiply
    18,683,931.40x = 28,025,897.10 × 15,707,861.80
  4. Step 4: Simplify right side
    18,683,931.40x = 440,226,918,467,820.81
  5. Step 5: Solve for x
    x = 440,226,918,467,820.81/18,683,931.40
  6. Step 6: Final answer
    x = 23,561,792.70

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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.