Home / 19,931,288,461.20-27,492,217,977.10-12,783,380,439.14

Finding the Fourth Proportional to 19,931,288,461.20, 27,492,217,977.10 and 12,783,380,439.14

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Solution

The fourth proportional to 19,931,288,461.20, 27,492,217,977.10 and 12,783,380,439.14 is: 17,632,752,754.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,931,288,461.20 : 27,492,217,977.10 = 12,783,380,439.14 : x
  2. Step 2: Convert to fraction form
    19,931,288,461.20/27,492,217,977.10 = 12,783,380,439.14/x
  3. Step 3: Cross multiply
    19,931,288,461.20x = 27,492,217,977.10 × 12,783,380,439.14
  4. Step 4: Simplify right side
    19,931,288,461.20x = 351,443,481,517,033,193,472
  5. Step 5: Solve for x
    x = 351,443,481,517,033,193,472/19,931,288,461.20
  6. Step 6: Final answer
    x = 17,632,752,754.60

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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.