Home / 312,036,500.26-430,403,026.98-200,668,139.48

Finding the Fourth Proportional to 312,036,500.26, 430,403,026.98 and 200,668,139.48

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Solution

The fourth proportional to 312,036,500.26, 430,403,026.98 and 200,668,139.48 is: 276,788,691.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,036,500.26 : 430,403,026.98 = 200,668,139.48 : x
  2. Step 2: Convert to fraction form
    312,036,500.26/430,403,026.98 = 200,668,139.48/x
  3. Step 3: Cross multiply
    312,036,500.26x = 430,403,026.98 × 200,668,139.48
  4. Step 4: Simplify right side
    312,036,500.26x = 86,368,174,650,636,848
  5. Step 5: Solve for x
    x = 86,368,174,650,636,848/312,036,500.26
  6. Step 6: Final answer
    x = 276,788,691.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.