Home / 1,139,440,297.95-1,708,921,295.52-321,361,280.19

Finding the Fourth Proportional to 1,139,440,297.95, 1,708,921,295.52 and 321,361,280.19

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Solution

The fourth proportional to 1,139,440,297.95, 1,708,921,295.52 and 321,361,280.19 is: 481,974,471.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,139,440,297.95 : 1,708,921,295.52 = 321,361,280.19 : x
  2. Step 2: Convert to fraction form
    1,139,440,297.95/1,708,921,295.52 = 321,361,280.19/x
  3. Step 3: Cross multiply
    1,139,440,297.95x = 1,708,921,295.52 × 321,361,280.19
  4. Step 4: Simplify right side
    1,139,440,297.95x = 549,181,135,272,260,480
  5. Step 5: Solve for x
    x = 549,181,135,272,260,480/1,139,440,297.95
  6. Step 6: Final answer
    x = 481,974,471.38

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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.