Home / 85,769,416.08-128,548,721.66-39,648,899.39

Finding the Fourth Proportional to 85,769,416.08, 128,548,721.66 and 39,648,899.39

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Solution

The fourth proportional to 85,769,416.08, 128,548,721.66 and 39,648,899.39 is: 59,424,624.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,769,416.08 : 128,548,721.66 = 39,648,899.39 : x
  2. Step 2: Convert to fraction form
    85,769,416.08/128,548,721.66 = 39,648,899.39/x
  3. Step 3: Cross multiply
    85,769,416.08x = 128,548,721.66 × 39,648,899.39
  4. Step 4: Simplify right side
    85,769,416.08x = 5,096,815,330,969,465
  5. Step 5: Solve for x
    x = 5,096,815,330,969,465/85,769,416.08
  6. Step 6: Final answer
    x = 59,424,624.35

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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.