Home / 384,597,421.26-530,744,640.89-208,385,555.06

Finding the Fourth Proportional to 384,597,421.26, 530,744,640.89 and 208,385,555.06

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Solution

The fourth proportional to 384,597,421.26, 530,744,640.89 and 208,385,555.06 is: 287,572,174.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,597,421.26 : 530,744,640.89 = 208,385,555.06 : x
  2. Step 2: Convert to fraction form
    384,597,421.26/530,744,640.89 = 208,385,555.06/x
  3. Step 3: Cross multiply
    384,597,421.26x = 530,744,640.89 × 208,385,555.06
  4. Step 4: Simplify right side
    384,597,421.26x = 110,599,516,583,287,376
  5. Step 5: Solve for x
    x = 110,599,516,583,287,376/384,597,421.26
  6. Step 6: Final answer
    x = 287,572,174.10

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.