Home / 633,084,830.73-873,705,533.82-398,336,712.21

Finding the Fourth Proportional to 633,084,830.73, 873,705,533.82 and 398,336,712.21

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Solution

The fourth proportional to 633,084,830.73, 873,705,533.82 and 398,336,712.21 is: 549,735,158.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,084,830.73 : 873,705,533.82 = 398,336,712.21 : x
  2. Step 2: Convert to fraction form
    633,084,830.73/873,705,533.82 = 398,336,712.21/x
  3. Step 3: Cross multiply
    633,084,830.73x = 873,705,533.82 × 398,336,712.21
  4. Step 4: Simplify right side
    633,084,830.73x = 348,028,989,781,541,760
  5. Step 5: Solve for x
    x = 348,028,989,781,541,760/633,084,830.73
  6. Step 6: Final answer
    x = 549,735,158.53

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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.