Home / 13,639,631.63-18,847,313.10-9,712,569.89

Finding the Fourth Proportional to 13,639,631.63, 18,847,313.10 and 9,712,569.89

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Solution

The fourth proportional to 13,639,631.63, 18,847,313.10 and 9,712,569.89 is: 13,420,879.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,639,631.63 : 18,847,313.10 = 9,712,569.89 : x
  2. Step 2: Convert to fraction form
    13,639,631.63/18,847,313.10 = 9,712,569.89/x
  3. Step 3: Cross multiply
    13,639,631.63x = 18,847,313.10 × 9,712,569.89
  4. Step 4: Simplify right side
    13,639,631.63x = 183,055,845,722,462.59
  5. Step 5: Solve for x
    x = 183,055,845,722,462.59/13,639,631.63
  6. Step 6: Final answer
    x = 13,420,879.00

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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.