Home / 522,139,585.47-783,298,607.78-215,263,944.51

Finding the Fourth Proportional to 522,139,585.47, 783,298,607.78 and 215,263,944.51

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Solution

The fourth proportional to 522,139,585.47, 783,298,607.78 and 215,263,944.51 is: 322,932,703.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,139,585.47 : 783,298,607.78 = 215,263,944.51 : x
  2. Step 2: Convert to fraction form
    522,139,585.47/783,298,607.78 = 215,263,944.51/x
  3. Step 3: Cross multiply
    522,139,585.47x = 783,298,607.78 × 215,263,944.51
  4. Step 4: Simplify right side
    522,139,585.47x = 168,615,948,039,914,176
  5. Step 5: Solve for x
    x = 168,615,948,039,914,176/522,139,585.47
  6. Step 6: Final answer
    x = 322,932,703.69

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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.