Home / 13,148,484.96-18,144,561.16-7,347,314.36

Finding the Fourth Proportional to 13,148,484.96, 18,144,561.16 and 7,347,314.36

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Solution

The fourth proportional to 13,148,484.96, 18,144,561.16 and 7,347,314.36 is: 10,139,099.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,148,484.96 : 18,144,561.16 = 7,347,314.36 : x
  2. Step 2: Convert to fraction form
    13,148,484.96/18,144,561.16 = 7,347,314.36/x
  3. Step 3: Cross multiply
    13,148,484.96x = 18,144,561.16 × 7,347,314.36
  4. Step 4: Simplify right side
    13,148,484.96x = 133,313,794,766,766.27
  5. Step 5: Solve for x
    x = 133,313,794,766,766.27/13,148,484.96
  6. Step 6: Final answer
    x = 10,139,099.31

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1.5x scale

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.