Home / 85,358,528.96-128,051,129.28-27,837,422.72

Finding the Fourth Proportional to 85,358,528.96, 128,051,129.28 and 27,837,422.72

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Solution

The fourth proportional to 85,358,528.96, 128,051,129.28 and 27,837,422.72 is: 41,760,483.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,358,528.96 : 128,051,129.28 = 27,837,422.72 : x
  2. Step 2: Convert to fraction form
    85,358,528.96/128,051,129.28 = 27,837,422.72/x
  3. Step 3: Cross multiply
    85,358,528.96x = 128,051,129.28 × 27,837,422.72
  4. Step 4: Simplify right side
    85,358,528.96x = 3,564,613,415,540,729
  5. Step 5: Solve for x
    x = 3,564,613,415,540,729/85,358,528.96
  6. Step 6: Final answer
    x = 41,760,483.21

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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.