Home / 285,205,779.40-427,837,670.72-98,435,414.80

Finding the Fourth Proportional to 285,205,779.40, 427,837,670.72 and 98,435,414.80

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Solution

The fourth proportional to 285,205,779.40, 427,837,670.72 and 98,435,414.80 is: 147,663,131.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,205,779.40 : 427,837,670.72 = 98,435,414.80 : x
  2. Step 2: Convert to fraction form
    285,205,779.40/427,837,670.72 = 98,435,414.80/x
  3. Step 3: Cross multiply
    285,205,779.40x = 427,837,670.72 × 98,435,414.80
  4. Step 4: Simplify right side
    285,205,779.40x = 42,114,378,584,389,016
  5. Step 5: Solve for x
    x = 42,114,378,584,389,016/285,205,779.40
  6. Step 6: Final answer
    x = 147,663,131.77

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.