Home / 15,862,803-21,890,799.36-8,619,459

Finding the Fourth Proportional to 15,862,803, 21,890,799.36 and 8,619,459

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Solution

The fourth proportional to 15,862,803, 21,890,799.36 and 8,619,459 is: 11,894,924.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,862,803 : 21,890,799.36 = 8,619,459 : x
  2. Step 2: Convert to fraction form
    15,862,803/21,890,799.36 = 8,619,459/x
  3. Step 3: Cross multiply
    15,862,803x = 21,890,799.36 × 8,619,459
  4. Step 4: Simplify right side
    15,862,803x = 188,686,847,560,746.25
  5. Step 5: Solve for x
    x = 188,686,847,560,746.25/15,862,803
  6. Step 6: Final answer
    x = 11,894,924.72

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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.