Home / 384,779,702.48-530,981,763.77-208,563,914.43

Finding the Fourth Proportional to 384,779,702.48, 530,981,763.77 and 208,563,914.43

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Solution

The fourth proportional to 384,779,702.48, 530,981,763.77 and 208,563,914.43 is: 287,810,491.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,779,702.48 : 530,981,763.77 = 208,563,914.43 : x
  2. Step 2: Convert to fraction form
    384,779,702.48/530,981,763.77 = 208,563,914.43/x
  3. Step 3: Cross multiply
    384,779,702.48x = 530,981,763.77 × 208,563,914.43
  4. Step 4: Simplify right side
    384,779,702.48x = 110,743,635,141,773,936
  5. Step 5: Solve for x
    x = 110,743,635,141,773,936/384,779,702.48
  6. Step 6: Final answer
    x = 287,810,491.12

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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.