Home / 7,721,334.09-10,651,014-4,815,680.40

Finding the Fourth Proportional to 7,721,334.09, 10,651,014 and 4,815,680.40

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Solution

The fourth proportional to 7,721,334.09, 10,651,014 and 4,815,680.40 is: 6,642,877.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,721,334.09 : 10,651,014 = 4,815,680.40 : x
  2. Step 2: Convert to fraction form
    7,721,334.09/10,651,014 = 4,815,680.40/x
  3. Step 3: Cross multiply
    7,721,334.09x = 10,651,014 × 4,815,680.40
  4. Step 4: Simplify right side
    7,721,334.09x = 51,291,879,359,925.60
  5. Step 5: Solve for x
    x = 51,291,879,359,925.60/7,721,334.09
  6. Step 6: Final answer
    x = 6,642,877.87

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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.