Home / 205,301,590.74-308,021,137.29-67,133,569.50

Finding the Fourth Proportional to 205,301,590.74, 308,021,137.29 and 67,133,569.50

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Solution

The fourth proportional to 205,301,590.74, 308,021,137.29 and 67,133,569.50 is: 100,722,835.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,301,590.74 : 308,021,137.29 = 67,133,569.50 : x
  2. Step 2: Convert to fraction form
    205,301,590.74/308,021,137.29 = 67,133,569.50/x
  3. Step 3: Cross multiply
    205,301,590.74x = 308,021,137.29 × 67,133,569.50
  4. Step 4: Simplify right side
    205,301,590.74x = 20,678,558,427,727,260
  5. Step 5: Solve for x
    x = 20,678,558,427,727,260/205,301,590.74
  6. Step 6: Final answer
    x = 100,722,835.87

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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.