Home / 13,640,440.98-18,820,998.59-7,838,101.71

Finding the Fourth Proportional to 13,640,440.98, 18,820,998.59 and 7,838,101.71

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Solution

The fourth proportional to 13,640,440.98, 18,820,998.59 and 7,838,101.71 is: 10,814,965.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,640,440.98 : 18,820,998.59 = 7,838,101.71 : x
  2. Step 2: Convert to fraction form
    13,640,440.98/18,820,998.59 = 7,838,101.71/x
  3. Step 3: Cross multiply
    13,640,440.98x = 18,820,998.59 × 7,838,101.71
  4. Step 4: Simplify right side
    13,640,440.98x = 147,520,901,323,090.28
  5. Step 5: Solve for x
    x = 147,520,901,323,090.28/13,640,440.98
  6. Step 6: Final answer
    x = 10,814,965.70

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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.