Home / 38,620,681.28-57,909,185.76-12,705,969.92

Finding the Fourth Proportional to 38,620,681.28, 57,909,185.76 and 12,705,969.92

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Solution

The fourth proportional to 38,620,681.28, 57,909,185.76 and 12,705,969.92 is: 19,051,770.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,620,681.28 : 57,909,185.76 = 12,705,969.92 : x
  2. Step 2: Convert to fraction form
    38,620,681.28/57,909,185.76 = 12,705,969.92/x
  3. Step 3: Cross multiply
    38,620,681.28x = 57,909,185.76 × 12,705,969.92
  4. Step 4: Simplify right side
    38,620,681.28x = 735,792,372,358,252.25
  5. Step 5: Solve for x
    x = 735,792,372,358,252.25/38,620,681.28
  6. Step 6: Final answer
    x = 19,051,770.92

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.