Home / 289,364,385,252.12-434,067,240,307.68-77,127,405,990

Finding the Fourth Proportional to 289,364,385,252.12, 434,067,240,307.68 and 77,127,405,990

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Solution

The fourth proportional to 289,364,385,252.12, 434,067,240,307.68 and 77,127,405,990 is: 115,696,616,364.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,364,385,252.12 : 434,067,240,307.68 = 77,127,405,990 : x
  2. Step 2: Convert to fraction form
    289,364,385,252.12/434,067,240,307.68 = 77,127,405,990/x
  3. Step 3: Cross multiply
    289,364,385,252.12x = 434,067,240,307.68 × 77,127,405,990
  4. Step 4: Simplify right side
    289,364,385,252.12x = 33,478,480,270,169,326,223,360
  5. Step 5: Solve for x
    x = 33,478,480,270,169,326,223,360/289,364,385,252.12
  6. Step 6: Final answer
    x = 115,696,616,364.86

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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.