Home / 683,262,333.76-942,969,465.12-389,950,784.32

Finding the Fourth Proportional to 683,262,333.76, 942,969,465.12 and 389,950,784.32

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Solution

The fourth proportional to 683,262,333.76, 942,969,465.12 and 389,950,784.32 is: 538,170,574.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    683,262,333.76 : 942,969,465.12 = 389,950,784.32 : x
  2. Step 2: Convert to fraction form
    683,262,333.76/942,969,465.12 = 389,950,784.32/x
  3. Step 3: Cross multiply
    683,262,333.76x = 942,969,465.12 × 389,950,784.32
  4. Step 4: Simplify right side
    683,262,333.76x = 367,711,682,513,354,880
  5. Step 5: Solve for x
    x = 367,711,682,513,354,880/683,262,333.76
  6. Step 6: Final answer
    x = 538,170,574.24

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.