Home / 384,779,703.98-530,981,765.84-208,563,915.93

Finding the Fourth Proportional to 384,779,703.98, 530,981,765.84 and 208,563,915.93

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Solution

The fourth proportional to 384,779,703.98, 530,981,765.84 and 208,563,915.93 is: 287,810,493.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,779,703.98 : 530,981,765.84 = 208,563,915.93 : x
  2. Step 2: Convert to fraction form
    384,779,703.98/530,981,765.84 = 208,563,915.93/x
  3. Step 3: Cross multiply
    384,779,703.98x = 530,981,765.84 × 208,563,915.93
  4. Step 4: Simplify right side
    384,779,703.98x = 110,743,636,369,973,888
  5. Step 5: Solve for x
    x = 110,743,636,369,973,888/384,779,703.98
  6. Step 6: Final answer
    x = 287,810,493.19

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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.