Home / 390,927,068.91-539,489,890.21-230,002,285.54

Finding the Fourth Proportional to 390,927,068.91, 539,489,890.21 and 230,002,285.54

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Solution

The fourth proportional to 390,927,068.91, 539,489,890.21 and 230,002,285.54 is: 317,409,352.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,927,068.91 : 539,489,890.21 = 230,002,285.54 : x
  2. Step 2: Convert to fraction form
    390,927,068.91/539,489,890.21 = 230,002,285.54/x
  3. Step 3: Cross multiply
    390,927,068.91x = 539,489,890.21 × 230,002,285.54
  4. Step 4: Simplify right side
    390,927,068.91x = 124,083,907,770,176,224
  5. Step 5: Solve for x
    x = 124,083,907,770,176,224/390,927,068.91
  6. Step 6: Final answer
    x = 317,409,352.38

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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.