Home / 28,068,291.99-38,772,154.53-21,151,255.17

Finding the Fourth Proportional to 28,068,291.99, 38,772,154.53 and 21,151,255.17

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Solution

The fourth proportional to 28,068,291.99, 38,772,154.53 and 21,151,255.17 is: 29,217,300.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,068,291.99 : 38,772,154.53 = 21,151,255.17 : x
  2. Step 2: Convert to fraction form
    28,068,291.99/38,772,154.53 = 21,151,255.17/x
  3. Step 3: Cross multiply
    28,068,291.99x = 38,772,154.53 × 21,151,255.17
  4. Step 4: Simplify right side
    28,068,291.99x = 820,079,733,954,701.50
  5. Step 5: Solve for x
    x = 820,079,733,954,701.50/28,068,291.99
  6. Step 6: Final answer
    x = 29,217,300.94

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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.