Home / 12,676,619.40-17,494,130.78-7,169,886.50

Finding the Fourth Proportional to 12,676,619.40, 17,494,130.78 and 7,169,886.50

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Solution

The fourth proportional to 12,676,619.40, 17,494,130.78 and 7,169,886.50 is: 9,894,667.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,676,619.40 : 17,494,130.78 = 7,169,886.50 : x
  2. Step 2: Convert to fraction form
    12,676,619.40/17,494,130.78 = 7,169,886.50/x
  3. Step 3: Cross multiply
    12,676,619.40x = 17,494,130.78 × 7,169,886.50
  4. Step 4: Simplify right side
    12,676,619.40x = 125,430,931,985,436.38
  5. Step 5: Solve for x
    x = 125,430,931,985,436.38/12,676,619.40
  6. Step 6: Final answer
    x = 9,894,667.34

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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.