Home / 384,779,705.14-530,981,767.47-208,563,917.05

Finding the Fourth Proportional to 384,779,705.14, 530,981,767.47 and 208,563,917.05

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Solution

The fourth proportional to 384,779,705.14, 530,981,767.47 and 208,563,917.05 is: 287,810,494.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,779,705.14 : 530,981,767.47 = 208,563,917.05 : x
  2. Step 2: Convert to fraction form
    384,779,705.14/530,981,767.47 = 208,563,917.05/x
  3. Step 3: Cross multiply
    384,779,705.14x = 530,981,767.47 × 208,563,917.05
  4. Step 4: Simplify right side
    384,779,705.14x = 110,743,637,305,675,488
  5. Step 5: Solve for x
    x = 110,743,637,305,675,488/384,779,705.14
  6. Step 6: Final answer
    x = 287,810,494.75

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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.