Home / 150,281,796,310.32-207,387,405,544.59-81,689,128,314.42

Finding the Fourth Proportional to 150,281,796,310.32, 207,387,405,544.59 and 81,689,128,314.42

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Solution

The fourth proportional to 150,281,796,310.32, 207,387,405,544.59 and 81,689,128,314.42 is: 112,730,196,193.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,281,796,310.32 : 207,387,405,544.59 = 81,689,128,314.42 : x
  2. Step 2: Convert to fraction form
    150,281,796,310.32/207,387,405,544.59 = 81,689,128,314.42/x
  3. Step 3: Cross multiply
    150,281,796,310.32x = 207,387,405,544.59 × 81,689,128,314.42
  4. Step 4: Simplify right side
    150,281,796,310.32x = 16,941,296,382,326,668,787,712
  5. Step 5: Solve for x
    x = 16,941,296,382,326,668,787,712/150,281,796,310.32
  6. Step 6: Final answer
    x = 112,730,196,193.19

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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.