Home / 57,114,979,378.15-78,817,611,197.79-31,393,709,433.59

Finding the Fourth Proportional to 57,114,979,378.15, 78,817,611,197.79 and 31,393,709,433.59

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Solution

The fourth proportional to 57,114,979,378.15, 78,817,611,197.79 and 31,393,709,433.59 is: 43,322,736,191.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,114,979,378.15 : 78,817,611,197.79 = 31,393,709,433.59 : x
  2. Step 2: Convert to fraction form
    57,114,979,378.15/78,817,611,197.79 = 31,393,709,433.59/x
  3. Step 3: Cross multiply
    57,114,979,378.15x = 78,817,611,197.79 × 31,393,709,433.59
  4. Step 4: Simplify right side
    57,114,979,378.15x = 2,474,377,184,192,931,823,616
  5. Step 5: Solve for x
    x = 2,474,377,184,192,931,823,616/57,114,979,378.15
  6. Step 6: Final answer
    x = 43,322,736,191.69

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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.