Home / 808,698,776.19-1,213,051,718.16-256,003,919.70

Finding the Fourth Proportional to 808,698,776.19, 1,213,051,718.16 and 256,003,919.70

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Solution

The fourth proportional to 808,698,776.19, 1,213,051,718.16 and 256,003,919.70 is: 384,007,004.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,698,776.19 : 1,213,051,718.16 = 256,003,919.70 : x
  2. Step 2: Convert to fraction form
    808,698,776.19/1,213,051,718.16 = 256,003,919.70/x
  3. Step 3: Cross multiply
    808,698,776.19x = 1,213,051,718.16 × 256,003,919.70
  4. Step 4: Simplify right side
    808,698,776.19x = 310,545,994,647,779,648
  5. Step 5: Solve for x
    x = 310,545,994,647,779,648/808,698,776.19
  6. Step 6: Final answer
    x = 384,007,004.57

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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.