Home / 482,916,643.80-724,374,965.70-445,609,485.60

Finding the Fourth Proportional to 482,916,643.80, 724,374,965.70 and 445,609,485.60

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Solution

The fourth proportional to 482,916,643.80, 724,374,965.70 and 445,609,485.60 is: 668,414,228.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,916,643.80 : 724,374,965.70 = 445,609,485.60 : x
  2. Step 2: Convert to fraction form
    482,916,643.80/724,374,965.70 = 445,609,485.60/x
  3. Step 3: Cross multiply
    482,916,643.80x = 724,374,965.70 × 445,609,485.60
  4. Step 4: Simplify right side
    482,916,643.80x = 322,788,355,847,094,656
  5. Step 5: Solve for x
    x = 322,788,355,847,094,656/482,916,643.80
  6. Step 6: Final answer
    x = 668,414,228.40

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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.