Home / 289,081,278.83-398,932,670.95-156,922,365.10

Finding the Fourth Proportional to 289,081,278.83, 398,932,670.95 and 156,922,365.10

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Solution

The fourth proportional to 289,081,278.83, 398,932,670.95 and 156,922,365.10 is: 216,553,138.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,081,278.83 : 398,932,670.95 = 156,922,365.10 : x
  2. Step 2: Convert to fraction form
    289,081,278.83/398,932,670.95 = 156,922,365.10/x
  3. Step 3: Cross multiply
    289,081,278.83x = 398,932,670.95 × 156,922,365.10
  4. Step 4: Simplify right side
    289,081,278.83x = 62,601,458,241,376,320
  5. Step 5: Solve for x
    x = 62,601,458,241,376,320/289,081,278.83
  6. Step 6: Final answer
    x = 216,553,138.60

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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.