Home / 775,684,026.15-1,163,526,039.23-678,828,903.90

Finding the Fourth Proportional to 775,684,026.15, 1,163,526,039.23 and 678,828,903.90

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Solution

The fourth proportional to 775,684,026.15, 1,163,526,039.23 and 678,828,903.90 is: 1,018,243,355.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    775,684,026.15 : 1,163,526,039.23 = 678,828,903.90 : x
  2. Step 2: Convert to fraction form
    775,684,026.15/1,163,526,039.23 = 678,828,903.90/x
  3. Step 3: Cross multiply
    775,684,026.15x = 1,163,526,039.23 × 678,828,903.90
  4. Step 4: Simplify right side
    775,684,026.15x = 789,835,105,866,215,040
  5. Step 5: Solve for x
    x = 789,835,105,866,215,040/775,684,026.15
  6. Step 6: Final answer
    x = 1,018,243,355.85

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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.