Home / 20,696,051.16-28,353,718.71-19,920,307.64

Finding the Fourth Proportional to 20,696,051.16, 28,353,718.71 and 19,920,307.64

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Solution

The fourth proportional to 20,696,051.16, 28,353,718.71 and 19,920,307.64 is: 27,290,945.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,696,051.16 : 28,353,718.71 = 19,920,307.64 : x
  2. Step 2: Convert to fraction form
    20,696,051.16/28,353,718.71 = 19,920,307.64/x
  3. Step 3: Cross multiply
    20,696,051.16x = 28,353,718.71 × 19,920,307.64
  4. Step 4: Simplify right side
    20,696,051.16x = 564,814,799,441,224
  5. Step 5: Solve for x
    x = 564,814,799,441,224/20,696,051.16
  6. Step 6: Final answer
    x = 27,290,945.27

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.