Home / 384,779,703.23-530,981,764.80-208,563,915.18

Finding the Fourth Proportional to 384,779,703.23, 530,981,764.80 and 208,563,915.18

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Solution

The fourth proportional to 384,779,703.23, 530,981,764.80 and 208,563,915.18 is: 287,810,492.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,779,703.23 : 530,981,764.80 = 208,563,915.18 : x
  2. Step 2: Convert to fraction form
    384,779,703.23/530,981,764.80 = 208,563,915.18/x
  3. Step 3: Cross multiply
    384,779,703.23x = 530,981,764.80 × 208,563,915.18
  4. Step 4: Simplify right side
    384,779,703.23x = 110,743,635,755,873,920
  5. Step 5: Solve for x
    x = 110,743,635,755,873,920/384,779,703.23
  6. Step 6: Final answer
    x = 287,810,492.15

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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.