Home / 13,639,631.13-18,847,312.41-9,712,569.39

Finding the Fourth Proportional to 13,639,631.13, 18,847,312.41 and 9,712,569.39

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Solution

The fourth proportional to 13,639,631.13, 18,847,312.41 and 9,712,569.39 is: 13,420,878.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,639,631.13 : 18,847,312.41 = 9,712,569.39 : x
  2. Step 2: Convert to fraction form
    13,639,631.13/18,847,312.41 = 9,712,569.39/x
  3. Step 3: Cross multiply
    13,639,631.13x = 18,847,312.41 × 9,712,569.39
  4. Step 4: Simplify right side
    13,639,631.13x = 183,055,829,597,133.16
  5. Step 5: Solve for x
    x = 183,055,829,597,133.16/13,639,631.13
  6. Step 6: Final answer
    x = 13,420,878.31

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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.