Home / 505,318,540.40-757,977,810.60-498,516,095.60

Finding the Fourth Proportional to 505,318,540.40, 757,977,810.60 and 498,516,095.60

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Solution

The fourth proportional to 505,318,540.40, 757,977,810.60 and 498,516,095.60 is: 747,774,143.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,318,540.40 : 757,977,810.60 = 498,516,095.60 : x
  2. Step 2: Convert to fraction form
    505,318,540.40/757,977,810.60 = 498,516,095.60/x
  3. Step 3: Cross multiply
    505,318,540.40x = 757,977,810.60 × 498,516,095.60
  4. Step 4: Simplify right side
    505,318,540.40x = 377,864,138,691,748,352
  5. Step 5: Solve for x
    x = 377,864,138,691,748,352/505,318,540.40
  6. Step 6: Final answer
    x = 747,774,143.40

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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.