Home / 28,274,913.10-39,019,536.52-15,885,528.94

Finding the Fourth Proportional to 28,274,913.10, 39,019,536.52 and 15,885,528.94

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Solution

The fourth proportional to 28,274,913.10, 39,019,536.52 and 15,885,528.94 is: 21,922,117.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,274,913.10 : 39,019,536.52 = 15,885,528.94 : x
  2. Step 2: Convert to fraction form
    28,274,913.10/39,019,536.52 = 15,885,528.94/x
  3. Step 3: Cross multiply
    28,274,913.10x = 39,019,536.52 × 15,885,528.94
  4. Step 4: Simplify right side
    28,274,913.10x = 619,845,976,712,247.75
  5. Step 5: Solve for x
    x = 619,845,976,712,247.75/28,274,913.10
  6. Step 6: Final answer
    x = 21,922,117.83

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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.