Home / 380,202,119.32-524,588,988.64-215,189,688.84

Finding the Fourth Proportional to 380,202,119.32, 524,588,988.64 and 215,189,688.84

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Solution

The fourth proportional to 380,202,119.32, 524,588,988.64 and 215,189,688.84 is: 296,910,867.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,202,119.32 : 524,588,988.64 = 215,189,688.84 : x
  2. Step 2: Convert to fraction form
    380,202,119.32/524,588,988.64 = 215,189,688.84/x
  3. Step 3: Cross multiply
    380,202,119.32x = 524,588,988.64 × 215,189,688.84
  4. Step 4: Simplify right side
    380,202,119.32x = 112,886,141,234,331,888
  5. Step 5: Solve for x
    x = 112,886,141,234,331,888/380,202,119.32
  6. Step 6: Final answer
    x = 296,910,867.93

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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.