Home / 13,640,435.21-18,820,990.59-7,838,095.94

Finding the Fourth Proportional to 13,640,435.21, 18,820,990.59 and 7,838,095.94

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Solution

The fourth proportional to 13,640,435.21, 18,820,990.59 and 7,838,095.94 is: 10,814,957.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,640,435.21 : 18,820,990.59 = 7,838,095.94 : x
  2. Step 2: Convert to fraction form
    13,640,435.21/18,820,990.59 = 7,838,095.94/x
  3. Step 3: Cross multiply
    13,640,435.21x = 18,820,990.59 × 7,838,095.94
  4. Step 4: Simplify right side
    13,640,435.21x = 147,520,730,054,581.66
  5. Step 5: Solve for x
    x = 147,520,730,054,581.66/13,640,435.21
  6. Step 6: Final answer
    x = 10,814,957.72

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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.