Home / 827,141,879.70-1,240,712,819.55-764,006,688.90

Finding the Fourth Proportional to 827,141,879.70, 1,240,712,819.55 and 764,006,688.90

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Solution

The fourth proportional to 827,141,879.70, 1,240,712,819.55 and 764,006,688.90 is: 1,146,010,033.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    827,141,879.70 : 1,240,712,819.55 = 764,006,688.90 : x
  2. Step 2: Convert to fraction form
    827,141,879.70/1,240,712,819.55 = 764,006,688.90/x
  3. Step 3: Cross multiply
    827,141,879.70x = 1,240,712,819.55 × 764,006,688.90
  4. Step 4: Simplify right side
    827,141,879.70x = 947,912,893,140,178,560
  5. Step 5: Solve for x
    x = 947,912,893,140,178,560/827,141,879.70
  6. Step 6: Final answer
    x = 1,146,010,033.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.