Home / 19,154,607.12-28,706,959.44-7,781,760

Finding the Fourth Proportional to 19,154,607.12, 28,706,959.44 and 7,781,760

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Solution

The fourth proportional to 19,154,607.12, 28,706,959.44 and 7,781,760 is: 11,662,503.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,154,607.12 : 28,706,959.44 = 7,781,760 : x
  2. Step 2: Convert to fraction form
    19,154,607.12/28,706,959.44 = 7,781,760/x
  3. Step 3: Cross multiply
    19,154,607.12x = 28,706,959.44 × 7,781,760
  4. Step 4: Simplify right side
    19,154,607.12x = 223,390,668,691,814.41
  5. Step 5: Solve for x
    x = 223,390,668,691,814.41/19,154,607.12
  6. Step 6: Final answer
    x = 11,662,503.30

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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.