Home / 416,152,665.60-624,228,998.40-390,643,497.60

Finding the Fourth Proportional to 416,152,665.60, 624,228,998.40 and 390,643,497.60

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Solution

The fourth proportional to 416,152,665.60, 624,228,998.40 and 390,643,497.60 is: 585,965,246.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    416,152,665.60 : 624,228,998.40 = 390,643,497.60 : x
  2. Step 2: Convert to fraction form
    416,152,665.60/624,228,998.40 = 390,643,497.60/x
  3. Step 3: Cross multiply
    416,152,665.60x = 624,228,998.40 × 390,643,497.60
  4. Step 4: Simplify right side
    416,152,665.60x = 243,850,999,238,320,800
  5. Step 5: Solve for x
    x = 243,850,999,238,320,800/416,152,665.60
  6. Step 6: Final answer
    x = 585,965,246.40

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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.