Home / 1,318,595,904.60-1,977,893,856.90-398,614,234.20

Finding the Fourth Proportional to 1,318,595,904.60, 1,977,893,856.90 and 398,614,234.20

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Solution

The fourth proportional to 1,318,595,904.60, 1,977,893,856.90 and 398,614,234.20 is: 597,921,351.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,318,595,904.60 : 1,977,893,856.90 = 398,614,234.20 : x
  2. Step 2: Convert to fraction form
    1,318,595,904.60/1,977,893,856.90 = 398,614,234.20/x
  3. Step 3: Cross multiply
    1,318,595,904.60x = 1,977,893,856.90 × 398,614,234.20
  4. Step 4: Simplify right side
    1,318,595,904.60x = 788,416,645,097,077,888
  5. Step 5: Solve for x
    x = 788,416,645,097,077,888/1,318,595,904.60
  6. Step 6: Final answer
    x = 597,921,351.30

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Double scale
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1.5x scale

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.