Home / 978,614,230.40-1,467,921,345.60-543,257,763.20

Finding the Fourth Proportional to 978,614,230.40, 1,467,921,345.60 and 543,257,763.20

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Solution

The fourth proportional to 978,614,230.40, 1,467,921,345.60 and 543,257,763.20 is: 814,886,644.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    978,614,230.40 : 1,467,921,345.60 = 543,257,763.20 : x
  2. Step 2: Convert to fraction form
    978,614,230.40/1,467,921,345.60 = 543,257,763.20/x
  3. Step 3: Cross multiply
    978,614,230.40x = 1,467,921,345.60 × 543,257,763.20
  4. Step 4: Simplify right side
    978,614,230.40x = 797,459,666,764,190,208
  5. Step 5: Solve for x
    x = 797,459,666,764,190,208/978,614,230.40
  6. Step 6: Final answer
    x = 814,886,644.80

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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.