Home / 13,130,743.76-18,120,357.24-7,625,472.32

Finding the Fourth Proportional to 13,130,743.76, 18,120,357.24 and 7,625,472.32

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Solution

The fourth proportional to 13,130,743.76, 18,120,357.24 and 7,625,472.32 is: 10,523,111.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,130,743.76 : 18,120,357.24 = 7,625,472.32 : x
  2. Step 2: Convert to fraction form
    13,130,743.76/18,120,357.24 = 7,625,472.32/x
  3. Step 3: Cross multiply
    13,130,743.76x = 18,120,357.24 × 7,625,472.32
  4. Step 4: Simplify right side
    13,130,743.76x = 138,176,282,562,131.59
  5. Step 5: Solve for x
    x = 138,176,282,562,131.59/13,130,743.76
  6. Step 6: Final answer
    x = 10,523,111.64

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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.