Home / 53,939,516.40-80,909,274.60-53,043,721.20

Finding the Fourth Proportional to 53,939,516.40, 80,909,274.60 and 53,043,721.20

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Solution

The fourth proportional to 53,939,516.40, 80,909,274.60 and 53,043,721.20 is: 79,565,581.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,939,516.40 : 80,909,274.60 = 53,043,721.20 : x
  2. Step 2: Convert to fraction form
    53,939,516.40/80,909,274.60 = 53,043,721.20/x
  3. Step 3: Cross multiply
    53,939,516.40x = 80,909,274.60 × 53,043,721.20
  4. Step 4: Simplify right side
    53,939,516.40x = 4,291,729,004,376,641.50
  5. Step 5: Solve for x
    x = 4,291,729,004,376,641.50/53,939,516.40
  6. Step 6: Final answer
    x = 79,565,581.80

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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.