Home / 312,068,541.32-468,169,897-90,743,727.62

Finding the Fourth Proportional to 312,068,541.32, 468,169,897 and 90,743,727.62

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Solution

The fourth proportional to 312,068,541.32, 468,169,897 and 90,743,727.62 is: 136,135,098.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,068,541.32 : 468,169,897 = 90,743,727.62 : x
  2. Step 2: Convert to fraction form
    312,068,541.32/468,169,897 = 90,743,727.62/x
  3. Step 3: Cross multiply
    312,068,541.32x = 468,169,897 × 90,743,727.62
  4. Step 4: Simplify right side
    312,068,541.32x = 42,483,481,613,251,456
  5. Step 5: Solve for x
    x = 42,483,481,613,251,456/312,068,541.32
  6. Step 6: Final answer
    x = 136,135,098.51

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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.