Home / 85,682,574.32-118,160,885.40-56,261,997.68

Finding the Fourth Proportional to 85,682,574.32, 118,160,885.40 and 56,261,997.68

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Solution

The fourth proportional to 85,682,574.32, 118,160,885.40 and 56,261,997.68 is: 77,588,325.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,682,574.32 : 118,160,885.40 = 56,261,997.68 : x
  2. Step 2: Convert to fraction form
    85,682,574.32/118,160,885.40 = 56,261,997.68/x
  3. Step 3: Cross multiply
    85,682,574.32x = 118,160,885.40 × 56,261,997.68
  4. Step 4: Simplify right side
    85,682,574.32x = 6,647,967,460,241,546
  5. Step 5: Solve for x
    x = 6,647,967,460,241,546/85,682,574.32
  6. Step 6: Final answer
    x = 77,588,325.43

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1.5x scale

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.