Home / 85,384,922.40-128,077,383.60-21,559,514.40

Finding the Fourth Proportional to 85,384,922.40, 128,077,383.60 and 21,559,514.40

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Solution

The fourth proportional to 85,384,922.40, 128,077,383.60 and 21,559,514.40 is: 32,339,271.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,384,922.40 : 128,077,383.60 = 21,559,514.40 : x
  2. Step 2: Convert to fraction form
    85,384,922.40/128,077,383.60 = 21,559,514.40/x
  3. Step 3: Cross multiply
    85,384,922.40x = 128,077,383.60 × 21,559,514.40
  4. Step 4: Simplify right side
    85,384,922.40x = 2,761,286,196,038,523.50
  5. Step 5: Solve for x
    x = 2,761,286,196,038,523.50/85,384,922.40
  6. Step 6: Final answer
    x = 32,339,271.60

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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.