Home / 13,578,411.16-18,733,621.80-7,697,414.80

Finding the Fourth Proportional to 13,578,411.16, 18,733,621.80 and 7,697,414.80

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Solution

The fourth proportional to 13,578,411.16, 18,733,621.80 and 7,697,414.80 is: 10,619,832.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,578,411.16 : 18,733,621.80 = 7,697,414.80 : x
  2. Step 2: Convert to fraction form
    13,578,411.16/18,733,621.80 = 7,697,414.80/x
  3. Step 3: Cross multiply
    13,578,411.16x = 18,733,621.80 × 7,697,414.80
  4. Step 4: Simplify right side
    13,578,411.16x = 144,200,457,700,922.66
  5. Step 5: Solve for x
    x = 144,200,457,700,922.66/13,578,411.16
  6. Step 6: Final answer
    x = 10,619,832.91

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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.