Home / 13,117,812.78-18,102,613.30-7,316,970.24

Finding the Fourth Proportional to 13,117,812.78, 18,102,613.30 and 7,316,970.24

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Solution

The fourth proportional to 13,117,812.78, 18,102,613.30 and 7,316,970.24 is: 10,097,436.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,117,812.78 : 18,102,613.30 = 7,316,970.24 : x
  2. Step 2: Convert to fraction form
    13,117,812.78/18,102,613.30 = 7,316,970.24/x
  3. Step 3: Cross multiply
    13,117,812.78x = 18,102,613.30 × 7,316,970.24
  4. Step 4: Simplify right side
    13,117,812.78x = 132,456,282,782,328.20
  5. Step 5: Solve for x
    x = 132,456,282,782,328.20/13,117,812.78
  6. Step 6: Final answer
    x = 10,097,436.59

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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.