Home / 100,890,435.94-139,229,226.75-56,837,962.86

Finding the Fourth Proportional to 100,890,435.94, 139,229,226.75 and 56,837,962.86

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Solution

The fourth proportional to 100,890,435.94, 139,229,226.75 and 56,837,962.86 is: 78,436,628.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,890,435.94 : 139,229,226.75 = 56,837,962.86 : x
  2. Step 2: Convert to fraction form
    100,890,435.94/139,229,226.75 = 56,837,962.86/x
  3. Step 3: Cross multiply
    100,890,435.94x = 139,229,226.75 × 56,837,962.86
  4. Step 4: Simplify right side
    100,890,435.94x = 7,913,505,619,043,018
  5. Step 5: Solve for x
    x = 7,913,505,619,043,018/100,890,435.94
  6. Step 6: Final answer
    x = 78,436,628.26

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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.