Home / 633,084,833.73-873,705,537.96-398,336,715.21

Finding the Fourth Proportional to 633,084,833.73, 873,705,537.96 and 398,336,715.21

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Solution

The fourth proportional to 633,084,833.73, 873,705,537.96 and 398,336,715.21 is: 549,735,162.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,084,833.73 : 873,705,537.96 = 398,336,715.21 : x
  2. Step 2: Convert to fraction form
    633,084,833.73/873,705,537.96 = 398,336,715.21/x
  3. Step 3: Cross multiply
    633,084,833.73x = 873,705,537.96 × 398,336,715.21
  4. Step 4: Simplify right side
    633,084,833.73x = 348,028,994,051,772,352
  5. Step 5: Solve for x
    x = 348,028,994,051,772,352/633,084,833.73
  6. Step 6: Final answer
    x = 549,735,162.67

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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.