Home / 125,812,936,772.65-188,719,407,356.68-30,198,955,601.21

Finding the Fourth Proportional to 125,812,936,772.65, 188,719,407,356.68 and 30,198,955,601.21

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Solution

The fourth proportional to 125,812,936,772.65, 188,719,407,356.68 and 30,198,955,601.21 is: 45,298,433,929.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,812,936,772.65 : 188,719,407,356.68 = 30,198,955,601.21 : x
  2. Step 2: Convert to fraction form
    125,812,936,772.65/188,719,407,356.68 = 30,198,955,601.21/x
  3. Step 3: Cross multiply
    125,812,936,772.65x = 188,719,407,356.68 × 30,198,955,601.21
  4. Step 4: Simplify right side
    125,812,936,772.65x = 5,699,129,003,851,609,276,416
  5. Step 5: Solve for x
    x = 5,699,129,003,851,609,276,416/125,812,936,772.65
  6. Step 6: Final answer
    x = 45,298,433,929.34

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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.