Home / 405,510,716.80-607,071,681.60-381,888,265.60

Finding the Fourth Proportional to 405,510,716.80, 607,071,681.60 and 381,888,265.60

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Solution

The fourth proportional to 405,510,716.80, 607,071,681.60 and 381,888,265.60 is: 571,707,582.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,510,716.80 : 607,071,681.60 = 381,888,265.60 : x
  2. Step 2: Convert to fraction form
    405,510,716.80/607,071,681.60 = 381,888,265.60/x
  3. Step 3: Cross multiply
    405,510,716.80x = 607,071,681.60 × 381,888,265.60
  4. Step 4: Simplify right side
    405,510,716.80x = 231,833,551,581,099,456
  5. Step 5: Solve for x
    x = 231,833,551,581,099,456/405,510,716.80
  6. Step 6: Final answer
    x = 571,707,582.50

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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.