Home / 384,779,696.68-530,981,755.81-208,563,908.64

Finding the Fourth Proportional to 384,779,696.68, 530,981,755.81 and 208,563,908.64

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Solution

The fourth proportional to 384,779,696.68, 530,981,755.81 and 208,563,908.64 is: 287,810,483.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,779,696.68 : 530,981,755.81 = 208,563,908.64 : x
  2. Step 2: Convert to fraction form
    384,779,696.68/530,981,755.81 = 208,563,908.64/x
  3. Step 3: Cross multiply
    384,779,696.68x = 530,981,755.81 × 208,563,908.64
  4. Step 4: Simplify right side
    384,779,696.68x = 110,743,630,408,263,616
  5. Step 5: Solve for x
    x = 110,743,630,408,263,616/384,779,696.68
  6. Step 6: Final answer
    x = 287,810,483.15

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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.