Home / 375,490,345.18-518,166,857.49-208,226,180.29

Finding the Fourth Proportional to 375,490,345.18, 518,166,857.49 and 208,226,180.29

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Solution

The fourth proportional to 375,490,345.18, 518,166,857.49 and 208,226,180.29 is: 287,346,683.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,490,345.18 : 518,166,857.49 = 208,226,180.29 : x
  2. Step 2: Convert to fraction form
    375,490,345.18/518,166,857.49 = 208,226,180.29/x
  3. Step 3: Cross multiply
    375,490,345.18x = 518,166,857.49 × 208,226,180.29
  4. Step 4: Simplify right side
    375,490,345.18x = 107,895,905,488,015,472
  5. Step 5: Solve for x
    x = 107,895,905,488,015,472/375,490,345.18
  6. Step 6: Final answer
    x = 287,346,683.80

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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.