Home / 13,400,355.64-18,487,481.16-7,890,363.04

Finding the Fourth Proportional to 13,400,355.64, 18,487,481.16 and 7,890,363.04

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Solution

The fourth proportional to 13,400,355.64, 18,487,481.16 and 7,890,363.04 is: 10,885,751.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,400,355.64 : 18,487,481.16 = 7,890,363.04 : x
  2. Step 2: Convert to fraction form
    13,400,355.64/18,487,481.16 = 7,890,363.04/x
  3. Step 3: Cross multiply
    13,400,355.64x = 18,487,481.16 × 7,890,363.04
  4. Step 4: Simplify right side
    13,400,355.64x = 145,872,938,047,560.34
  5. Step 5: Solve for x
    x = 145,872,938,047,560.34/13,400,355.64
  6. Step 6: Final answer
    x = 10,885,751.24

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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.