Home / 201,926,789.57-302,921,501.08-85,342,636.40

Finding the Fourth Proportional to 201,926,789.57, 302,921,501.08 and 85,342,636.40

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Solution

The fourth proportional to 201,926,789.57, 302,921,501.08 and 85,342,636.40 is: 128,027,190.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,926,789.57 : 302,921,501.08 = 85,342,636.40 : x
  2. Step 2: Convert to fraction form
    201,926,789.57/302,921,501.08 = 85,342,636.40/x
  3. Step 3: Cross multiply
    201,926,789.57x = 302,921,501.08 × 85,342,636.40
  4. Step 4: Simplify right side
    201,926,789.57x = 25,852,119,524,956,596
  5. Step 5: Solve for x
    x = 25,852,119,524,956,596/201,926,789.57
  6. Step 6: Final answer
    x = 128,027,190.35

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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.