Home / 779,869,857.60-1,169,521,351.20-262,317,182.40

Finding the Fourth Proportional to 779,869,857.60, 1,169,521,351.20 and 262,317,182.40

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Solution

The fourth proportional to 779,869,857.60, 1,169,521,351.20 and 262,317,182.40 is: 393,380,437.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,869,857.60 : 1,169,521,351.20 = 262,317,182.40 : x
  2. Step 2: Convert to fraction form
    779,869,857.60/1,169,521,351.20 = 262,317,182.40/x
  3. Step 3: Cross multiply
    779,869,857.60x = 1,169,521,351.20 × 262,317,182.40
  4. Step 4: Simplify right side
    779,869,857.60x = 306,785,545,603,424,896
  5. Step 5: Solve for x
    x = 306,785,545,603,424,896/779,869,857.60
  6. Step 6: Final answer
    x = 393,380,437.28

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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.