Home / 13,501,762.50-18,632,607.21-7,390,059.78

Finding the Fourth Proportional to 13,501,762.50, 18,632,607.21 and 7,390,059.78

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Solution

The fourth proportional to 13,501,762.50, 18,632,607.21 and 7,390,059.78 is: 10,198,378.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,501,762.50 : 18,632,607.21 = 7,390,059.78 : x
  2. Step 2: Convert to fraction form
    13,501,762.50/18,632,607.21 = 7,390,059.78/x
  3. Step 3: Cross multiply
    13,501,762.50x = 18,632,607.21 × 7,390,059.78
  4. Step 4: Simplify right side
    13,501,762.50x = 137,696,081,139,159.03
  5. Step 5: Solve for x
    x = 137,696,081,139,159.03/13,501,762.50
  6. Step 6: Final answer
    x = 10,198,378.26

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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.