Home / 372,785,882.45-514,330,518.29-216,121,726.67

Finding the Fourth Proportional to 372,785,882.45, 514,330,518.29 and 216,121,726.67

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Solution

The fourth proportional to 372,785,882.45, 514,330,518.29 and 216,121,726.67 is: 298,181,891.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,785,882.45 : 514,330,518.29 = 216,121,726.67 : x
  2. Step 2: Convert to fraction form
    372,785,882.45/514,330,518.29 = 216,121,726.67/x
  3. Step 3: Cross multiply
    372,785,882.45x = 514,330,518.29 × 216,121,726.67
  4. Step 4: Simplify right side
    372,785,882.45x = 111,157,999,688,258,560
  5. Step 5: Solve for x
    x = 111,157,999,688,258,560/372,785,882.45
  6. Step 6: Final answer
    x = 298,181,891.87

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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.