Home / 680,158,414,812.30-938,613,034,362.64-371,509,970,670.86

Finding the Fourth Proportional to 680,158,414,812.30, 938,613,034,362.64 and 371,509,970,670.86

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Solution

The fourth proportional to 680,158,414,812.30, 938,613,034,362.64 and 371,509,970,670.86 is: 512,680,712,718.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,158,414,812.30 : 938,613,034,362.64 = 371,509,970,670.86 : x
  2. Step 2: Convert to fraction form
    680,158,414,812.30/938,613,034,362.64 = 371,509,970,670.86/x
  3. Step 3: Cross multiply
    680,158,414,812.30x = 938,613,034,362.64 × 371,509,970,670.86
  4. Step 4: Simplify right side
    680,158,414,812.30x = 348,704,100,867,351,297,130,496
  5. Step 5: Solve for x
    x = 348,704,100,867,351,297,130,496/680,158,414,812.30
  6. Step 6: Final answer
    x = 512,680,712,718.35

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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.