Home / 21,279,528,195.34-29,360,877,059.10-12,704,285,899.70

Finding the Fourth Proportional to 21,279,528,195.34, 29,360,877,059.10 and 12,704,285,899.70

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Solution

The fourth proportional to 21,279,528,195.34, 29,360,877,059.10 and 12,704,285,899.70 is: 17,529,005,953.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,279,528,195.34 : 29,360,877,059.10 = 12,704,285,899.70 : x
  2. Step 2: Convert to fraction form
    21,279,528,195.34/29,360,877,059.10 = 12,704,285,899.70/x
  3. Step 3: Cross multiply
    21,279,528,195.34x = 29,360,877,059.10 × 12,704,285,899.70
  4. Step 4: Simplify right side
    21,279,528,195.34x = 373,008,976,424,749,367,296
  5. Step 5: Solve for x
    x = 373,008,976,424,749,367,296/21,279,528,195.34
  6. Step 6: Final answer
    x = 17,529,005,953.55

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Double scale
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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.