Home / 508,888,290-702,295,837.88-383,218,768.92

Finding the Fourth Proportional to 508,888,290, 702,295,837.88 and 383,218,768.92

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Solution

The fourth proportional to 508,888,290, 702,295,837.88 and 383,218,768.92 is: 528,864,490.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,888,290 : 702,295,837.88 = 383,218,768.92 : x
  2. Step 2: Convert to fraction form
    508,888,290/702,295,837.88 = 383,218,768.92/x
  3. Step 3: Cross multiply
    508,888,290x = 702,295,837.88 × 383,218,768.92
  4. Step 4: Simplify right side
    508,888,290x = 269,132,946,410,013,504
  5. Step 5: Solve for x
    x = 269,132,946,410,013,504/508,888,290
  6. Step 6: Final answer
    x = 528,864,490.89

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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.