Home / 56,905,604.76-78,529,728.06-30,800,117.64

Finding the Fourth Proportional to 56,905,604.76, 78,529,728.06 and 30,800,117.64

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Solution

The fourth proportional to 56,905,604.76, 78,529,728.06 and 30,800,117.64 is: 42,504,158.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,905,604.76 : 78,529,728.06 = 30,800,117.64 : x
  2. Step 2: Convert to fraction form
    56,905,604.76/78,529,728.06 = 30,800,117.64/x
  3. Step 3: Cross multiply
    56,905,604.76x = 78,529,728.06 × 30,800,117.64
  4. Step 4: Simplify right side
    56,905,604.76x = 2,418,724,862,485,209
  5. Step 5: Solve for x
    x = 2,418,724,862,485,209/56,905,604.76
  6. Step 6: Final answer
    x = 42,504,158.82

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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.