Home / 317,020,638.51-475,291,129.73-207,873,287.55

Finding the Fourth Proportional to 317,020,638.51, 475,291,129.73 and 207,873,287.55

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Solution

The fourth proportional to 317,020,638.51, 475,291,129.73 and 207,873,287.55 is: 311,652,673.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,020,638.51 : 475,291,129.73 = 207,873,287.55 : x
  2. Step 2: Convert to fraction form
    317,020,638.51/475,291,129.73 = 207,873,287.55/x
  3. Step 3: Cross multiply
    317,020,638.51x = 475,291,129.73 × 207,873,287.55
  4. Step 4: Simplify right side
    317,020,638.51x = 98,800,329,679,289,296
  5. Step 5: Solve for x
    x = 98,800,329,679,289,296/317,020,638.51
  6. Step 6: Final answer
    x = 311,652,673.92

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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.