Home / 20,716,492.19-28,591,336.71-11,898,705.02

Finding the Fourth Proportional to 20,716,492.19, 28,591,336.71 and 11,898,705.02

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Solution

The fourth proportional to 20,716,492.19, 28,591,336.71 and 11,898,705.02 is: 16,421,693.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,716,492.19 : 28,591,336.71 = 11,898,705.02 : x
  2. Step 2: Convert to fraction form
    20,716,492.19/28,591,336.71 = 11,898,705.02/x
  3. Step 3: Cross multiply
    20,716,492.19x = 28,591,336.71 × 11,898,705.02
  4. Step 4: Simplify right side
    20,716,492.19x = 340,199,881,639,787.31
  5. Step 5: Solve for x
    x = 340,199,881,639,787.31/20,716,492.19
  6. Step 6: Final answer
    x = 16,421,693.33

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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.