Home / 390,927,069.29-539,489,890.72-230,002,285.91

Finding the Fourth Proportional to 390,927,069.29, 539,489,890.72 and 230,002,285.91

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Solution

The fourth proportional to 390,927,069.29, 539,489,890.72 and 230,002,285.91 is: 317,409,352.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,927,069.29 : 539,489,890.72 = 230,002,285.91 : x
  2. Step 2: Convert to fraction form
    390,927,069.29/539,489,890.72 = 230,002,285.91/x
  3. Step 3: Cross multiply
    390,927,069.29x = 539,489,890.72 × 230,002,285.91
  4. Step 4: Simplify right side
    390,927,069.29x = 124,083,908,090,936,096
  5. Step 5: Solve for x
    x = 124,083,908,090,936,096/390,927,069.29
  6. Step 6: Final answer
    x = 317,409,352.90

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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.