Home / 519,705,002.87-779,302,412.27-257,086,125.35

Finding the Fourth Proportional to 519,705,002.87, 779,302,412.27 and 257,086,125.35

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Solution

The fourth proportional to 519,705,002.87, 779,302,412.27 and 257,086,125.35 is: 385,502,999.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,705,002.87 : 779,302,412.27 = 257,086,125.35 : x
  2. Step 2: Convert to fraction form
    519,705,002.87/779,302,412.27 = 257,086,125.35/x
  3. Step 3: Cross multiply
    519,705,002.87x = 779,302,412.27 × 257,086,125.35
  4. Step 4: Simplify right side
    519,705,002.87x = 200,347,837,645,117,152
  5. Step 5: Solve for x
    x = 200,347,837,645,117,152/519,705,002.87
  6. Step 6: Final answer
    x = 385,502,999.85

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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.