Home / 18,897,792.40-28,346,688.60-12,851,174.80

Finding the Fourth Proportional to 18,897,792.40, 28,346,688.60 and 12,851,174.80

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Solution

The fourth proportional to 18,897,792.40, 28,346,688.60 and 12,851,174.80 is: 19,276,762.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,897,792.40 : 28,346,688.60 = 12,851,174.80 : x
  2. Step 2: Convert to fraction form
    18,897,792.40/28,346,688.60 = 12,851,174.80/x
  3. Step 3: Cross multiply
    18,897,792.40x = 28,346,688.60 × 12,851,174.80
  4. Step 4: Simplify right side
    18,897,792.40x = 364,288,250,199,767.31
  5. Step 5: Solve for x
    x = 364,288,250,199,767.31/18,897,792.40
  6. Step 6: Final answer
    x = 19,276,762.20

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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.