Home / 12,687,990.34-17,509,444.38-6,886,773.40

Finding the Fourth Proportional to 12,687,990.34, 17,509,444.38 and 6,886,773.40

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Solution

The fourth proportional to 12,687,990.34, 17,509,444.38 and 6,886,773.40 is: 9,503,756.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,687,990.34 : 17,509,444.38 = 6,886,773.40 : x
  2. Step 2: Convert to fraction form
    12,687,990.34/17,509,444.38 = 6,886,773.40/x
  3. Step 3: Cross multiply
    12,687,990.34x = 17,509,444.38 × 6,886,773.40
  4. Step 4: Simplify right side
    12,687,990.34x = 120,583,575,804,963.48
  5. Step 5: Solve for x
    x = 120,583,575,804,963.48/12,687,990.34
  6. Step 6: Final answer
    x = 9,503,756.91

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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.