Home / 13,103,640.46-18,084,376.20-7,878,358

Finding the Fourth Proportional to 13,103,640.46, 18,084,376.20 and 7,878,358

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Solution

The fourth proportional to 13,103,640.46, 18,084,376.20 and 7,878,358 is: 10,872,947.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,103,640.46 : 18,084,376.20 = 7,878,358 : x
  2. Step 2: Convert to fraction form
    13,103,640.46/18,084,376.20 = 7,878,358/x
  3. Step 3: Cross multiply
    13,103,640.46x = 18,084,376.20 × 7,878,358
  4. Step 4: Simplify right side
    13,103,640.46x = 142,475,189,910,279.59
  5. Step 5: Solve for x
    x = 142,475,189,910,279.59/13,103,640.46
  6. Step 6: Final answer
    x = 10,872,947.13

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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.