Home / 21,976,531.90-30,327,039.48-12,186,951.28

Finding the Fourth Proportional to 21,976,531.90, 30,327,039.48 and 12,186,951.28

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Solution

The fourth proportional to 21,976,531.90, 30,327,039.48 and 12,186,951.28 is: 16,817,674.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,976,531.90 : 30,327,039.48 = 12,186,951.28 : x
  2. Step 2: Convert to fraction form
    21,976,531.90/30,327,039.48 = 12,186,951.28/x
  3. Step 3: Cross multiply
    21,976,531.90x = 30,327,039.48 × 12,186,951.28
  4. Step 4: Simplify right side
    21,976,531.90x = 369,594,152,609,396.50
  5. Step 5: Solve for x
    x = 369,594,152,609,396.50/21,976,531.90
  6. Step 6: Final answer
    x = 16,817,674.16

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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.