Home / 13,490,620.96-18,616,838.16-7,378,996

Finding the Fourth Proportional to 13,490,620.96, 18,616,838.16 and 7,378,996

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Solution

The fourth proportional to 13,490,620.96, 18,616,838.16 and 7,378,996 is: 10,182,894.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,490,620.96 : 18,616,838.16 = 7,378,996 : x
  2. Step 2: Convert to fraction form
    13,490,620.96/18,616,838.16 = 7,378,996/x
  3. Step 3: Cross multiply
    13,490,620.96x = 18,616,838.16 × 7,378,996
  4. Step 4: Simplify right side
    13,490,620.96x = 137,373,574,315,287.36
  5. Step 5: Solve for x
    x = 137,373,574,315,287.36/13,490,620.96
  6. Step 6: Final answer
    x = 10,182,894.82

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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.