Home / 13,508,910.16-18,641,935-7,707,586.48

Finding the Fourth Proportional to 13,508,910.16, 18,641,935 and 7,707,586.48

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Solution

The fourth proportional to 13,508,910.16, 18,641,935 and 7,707,586.48 is: 10,636,263.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,508,910.16 : 18,641,935 = 7,707,586.48 : x
  2. Step 2: Convert to fraction form
    13,508,910.16/18,641,935 = 7,707,586.48/x
  3. Step 3: Cross multiply
    13,508,910.16x = 18,641,935 × 7,707,586.48
  4. Step 4: Simplify right side
    13,508,910.16x = 143,684,326,167,038.81
  5. Step 5: Solve for x
    x = 143,684,326,167,038.81/13,508,910.16
  6. Step 6: Final answer
    x = 10,636,263.36

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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.