Home / 21,930,374.67-30,267,084.20-12,636,165.34

Finding the Fourth Proportional to 21,930,374.67, 30,267,084.20 and 12,636,165.34

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Solution

The fourth proportional to 21,930,374.67, 30,267,084.20 and 12,636,165.34 is: 17,439,733.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,930,374.67 : 30,267,084.20 = 12,636,165.34 : x
  2. Step 2: Convert to fraction form
    21,930,374.67/30,267,084.20 = 12,636,165.34/x
  3. Step 3: Cross multiply
    21,930,374.67x = 30,267,084.20 × 12,636,165.34
  4. Step 4: Simplify right side
    21,930,374.67x = 382,459,880,310,901.62
  5. Step 5: Solve for x
    x = 382,459,880,310,901.62/21,930,374.67
  6. Step 6: Final answer
    x = 17,439,733.07

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1.5x scale

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.