Home / 15,829,520.79-21,814,883.69-12,686,214.04

Finding the Fourth Proportional to 15,829,520.79, 21,814,883.69 and 12,686,214.04

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Solution

The fourth proportional to 15,829,520.79, 21,814,883.69 and 12,686,214.04 is: 17,483,048.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,829,520.79 : 21,814,883.69 = 12,686,214.04 : x
  2. Step 2: Convert to fraction form
    15,829,520.79/21,814,883.69 = 12,686,214.04/x
  3. Step 3: Cross multiply
    15,829,520.79x = 21,814,883.69 × 12,686,214.04
  4. Step 4: Simplify right side
    15,829,520.79x = 276,748,283,631,076.69
  5. Step 5: Solve for x
    x = 276,748,283,631,076.69/15,829,520.79
  6. Step 6: Final answer
    x = 17,483,048.74

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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.