Home / 152,759,868.54-210,826,569.30-85,789,832.76

Finding the Fourth Proportional to 152,759,868.54, 210,826,569.30 and 85,789,832.76

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Solution

The fourth proportional to 152,759,868.54, 210,826,569.30 and 85,789,832.76 is: 118,400,050.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,759,868.54 : 210,826,569.30 = 85,789,832.76 : x
  2. Step 2: Convert to fraction form
    152,759,868.54/210,826,569.30 = 85,789,832.76/x
  3. Step 3: Cross multiply
    152,759,868.54x = 210,826,569.30 × 85,789,832.76
  4. Step 4: Simplify right side
    152,759,868.54x = 18,086,776,121,611,552
  5. Step 5: Solve for x
    x = 18,086,776,121,611,552/152,759,868.54
  6. Step 6: Final answer
    x = 118,400,050.32

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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.