Home / 38,307,961.84-52,866,111.81-20,905,430.12

Finding the Fourth Proportional to 38,307,961.84, 52,866,111.81 and 20,905,430.12

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Solution

The fourth proportional to 38,307,961.84, 52,866,111.81 and 20,905,430.12 is: 28,850,107.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,307,961.84 : 52,866,111.81 = 20,905,430.12 : x
  2. Step 2: Convert to fraction form
    38,307,961.84/52,866,111.81 = 20,905,430.12/x
  3. Step 3: Cross multiply
    38,307,961.84x = 52,866,111.81 × 20,905,430.12
  4. Step 4: Simplify right side
    38,307,961.84x = 1,105,188,806,160,061.88
  5. Step 5: Solve for x
    x = 1,105,188,806,160,061.88/38,307,961.84
  6. Step 6: Final answer
    x = 28,850,107.21

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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.