Home / 620,136,030.90-930,204,046.35-505,344,774.90

Finding the Fourth Proportional to 620,136,030.90, 930,204,046.35 and 505,344,774.90

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Solution

The fourth proportional to 620,136,030.90, 930,204,046.35 and 505,344,774.90 is: 758,017,162.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,136,030.90 : 930,204,046.35 = 505,344,774.90 : x
  2. Step 2: Convert to fraction form
    620,136,030.90/930,204,046.35 = 505,344,774.90/x
  3. Step 3: Cross multiply
    620,136,030.90x = 930,204,046.35 × 505,344,774.90
  4. Step 4: Simplify right side
    620,136,030.90x = 470,073,754,413,809,920
  5. Step 5: Solve for x
    x = 470,073,754,413,809,920/620,136,030.90
  6. Step 6: Final answer
    x = 758,017,162.35

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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.