Home / 21,838,467,980.45-30,136,791,152.25-12,193,346,517.03

Finding the Fourth Proportional to 21,838,467,980.45, 30,136,791,152.25 and 12,193,346,517.03

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Solution

The fourth proportional to 21,838,467,980.45, 30,136,791,152.25 and 12,193,346,517.03 is: 16,826,653,671.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,838,467,980.45 : 30,136,791,152.25 = 12,193,346,517.03 : x
  2. Step 2: Convert to fraction form
    21,838,467,980.45/30,136,791,152.25 = 12,193,346,517.03/x
  3. Step 3: Cross multiply
    21,838,467,980.45x = 30,136,791,152.25 × 12,193,346,517.03
  4. Step 4: Simplify right side
    21,838,467,980.45x = 367,468,337,430,748,069,888
  5. Step 5: Solve for x
    x = 367,468,337,430,748,069,888/21,838,467,980.45
  6. Step 6: Final answer
    x = 16,826,653,671.85

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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.