Home / 377,964,496.95-521,622,055.43-208,451,887.08

Finding the Fourth Proportional to 377,964,496.95, 521,622,055.43 and 208,451,887.08

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Solution

The fourth proportional to 377,964,496.95, 521,622,055.43 and 208,451,887.08 is: 287,680,728.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,964,496.95 : 521,622,055.43 = 208,451,887.08 : x
  2. Step 2: Convert to fraction form
    377,964,496.95/521,622,055.43 = 208,451,887.08/x
  3. Step 3: Cross multiply
    377,964,496.95x = 521,622,055.43 × 208,451,887.08
  4. Step 4: Simplify right side
    377,964,496.95x = 108,733,101,796,931,872
  5. Step 5: Solve for x
    x = 108,733,101,796,931,872/377,964,496.95
  6. Step 6: Final answer
    x = 287,680,728.41

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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.