Home / 377,843,111.76-521,402,411.52-208,291,879.20

Finding the Fourth Proportional to 377,843,111.76, 521,402,411.52 and 208,291,879.20

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Solution

The fourth proportional to 377,843,111.76, 521,402,411.52 and 208,291,879.20 is: 287,431,171.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,843,111.76 : 521,402,411.52 = 208,291,879.20 : x
  2. Step 2: Convert to fraction form
    377,843,111.76/521,402,411.52 = 208,291,879.20/x
  3. Step 3: Cross multiply
    377,843,111.76x = 521,402,411.52 × 208,291,879.20
  4. Step 4: Simplify right side
    377,843,111.76x = 108,603,888,114,912,512
  5. Step 5: Solve for x
    x = 108,603,888,114,912,512/377,843,111.76
  6. Step 6: Final answer
    x = 287,431,171.13

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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.