Home / 384,779,710.80-530,981,775.36-208,563,922.85

Finding the Fourth Proportional to 384,779,710.80, 530,981,775.36 and 208,563,922.85

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Solution

The fourth proportional to 384,779,710.80, 530,981,775.36 and 208,563,922.85 is: 287,810,502.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,779,710.80 : 530,981,775.36 = 208,563,922.85 : x
  2. Step 2: Convert to fraction form
    384,779,710.80/530,981,775.36 = 208,563,922.85/x
  3. Step 3: Cross multiply
    384,779,710.80x = 530,981,775.36 × 208,563,922.85
  4. Step 4: Simplify right side
    384,779,710.80x = 110,743,642,028,284,160
  5. Step 5: Solve for x
    x = 110,743,642,028,284,160/384,779,710.80
  6. Step 6: Final answer
    x = 287,810,502.79

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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.