Home / 375,490,342.93-518,166,854.40-208,226,178.04

Finding the Fourth Proportional to 375,490,342.93, 518,166,854.40 and 208,226,178.04

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Solution

The fourth proportional to 375,490,342.93, 518,166,854.40 and 208,226,178.04 is: 287,346,680.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,490,342.93 : 518,166,854.40 = 208,226,178.04 : x
  2. Step 2: Convert to fraction form
    375,490,342.93/518,166,854.40 = 208,226,178.04/x
  3. Step 3: Cross multiply
    375,490,342.93x = 518,166,854.40 × 208,226,178.04
  4. Step 4: Simplify right side
    375,490,342.93x = 107,895,903,678,721,152
  5. Step 5: Solve for x
    x = 107,895,903,678,721,152/375,490,342.93
  6. Step 6: Final answer
    x = 287,346,680.71

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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.