Home / 13,713,965.12-20,470,809.36-12,714,856

Finding the Fourth Proportional to 13,713,965.12, 20,470,809.36 and 12,714,856

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Solution

The fourth proportional to 13,713,965.12, 20,470,809.36 and 12,714,856 is: 18,979,441.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,713,965.12 : 20,470,809.36 = 12,714,856 : x
  2. Step 2: Convert to fraction form
    13,713,965.12/20,470,809.36 = 12,714,856/x
  3. Step 3: Cross multiply
    13,713,965.12x = 20,470,809.36 × 12,714,856
  4. Step 4: Simplify right side
    13,713,965.12x = 260,283,393,215,852.16
  5. Step 5: Solve for x
    x = 260,283,393,215,852.16/13,713,965.12
  6. Step 6: Final answer
    x = 18,979,441.10

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.