Home / 620,136,006.40-930,204,009.60-505,344,750.40

Finding the Fourth Proportional to 620,136,006.40, 930,204,009.60 and 505,344,750.40

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Solution

The fourth proportional to 620,136,006.40, 930,204,009.60 and 505,344,750.40 is: 758,017,125.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,136,006.40 : 930,204,009.60 = 505,344,750.40 : x
  2. Step 2: Convert to fraction form
    620,136,006.40/930,204,009.60 = 505,344,750.40/x
  3. Step 3: Cross multiply
    620,136,006.40x = 930,204,009.60 × 505,344,750.40
  4. Step 4: Simplify right side
    620,136,006.40x = 470,073,713,052,391,168
  5. Step 5: Solve for x
    x = 470,073,713,052,391,168/620,136,006.40
  6. Step 6: Final answer
    x = 758,017,125.60

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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.