Home / 686,201,612.32-946,965,538.80-372,935,842.72

Finding the Fourth Proportional to 686,201,612.32, 946,965,538.80 and 372,935,842.72

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Solution

The fourth proportional to 686,201,612.32, 946,965,538.80 and 372,935,842.72 is: 514,655,437.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,201,612.32 : 946,965,538.80 = 372,935,842.72 : x
  2. Step 2: Convert to fraction form
    686,201,612.32/946,965,538.80 = 372,935,842.72/x
  3. Step 3: Cross multiply
    686,201,612.32x = 946,965,538.80 × 372,935,842.72
  4. Step 4: Simplify right side
    686,201,612.32x = 353,157,391,239,176,896
  5. Step 5: Solve for x
    x = 353,157,391,239,176,896/686,201,612.32
  6. Step 6: Final answer
    x = 514,655,437.85

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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.