Home / 13,515,423.76-18,651,750.96-7,403,852.80

Finding the Fourth Proportional to 13,515,423.76, 18,651,750.96 and 7,403,852.80

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Solution

The fourth proportional to 13,515,423.76, 18,651,750.96 and 7,403,852.80 is: 10,217,572.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,515,423.76 : 18,651,750.96 = 7,403,852.80 : x
  2. Step 2: Convert to fraction form
    13,515,423.76/18,651,750.96 = 7,403,852.80/x
  3. Step 3: Cross multiply
    13,515,423.76x = 18,651,750.96 × 7,403,852.80
  4. Step 4: Simplify right side
    13,515,423.76x = 138,094,818,570,098.69
  5. Step 5: Solve for x
    x = 138,094,818,570,098.69/13,515,423.76
  6. Step 6: Final answer
    x = 10,217,572.24

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.