Home / 817,188,015.40-1,225,782,023.10-490,032,935.80

Finding the Fourth Proportional to 817,188,015.40, 1,225,782,023.10 and 490,032,935.80

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Solution

The fourth proportional to 817,188,015.40, 1,225,782,023.10 and 490,032,935.80 is: 735,049,403.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,188,015.40 : 1,225,782,023.10 = 490,032,935.80 : x
  2. Step 2: Convert to fraction form
    817,188,015.40/1,225,782,023.10 = 490,032,935.80/x
  3. Step 3: Cross multiply
    817,188,015.40x = 1,225,782,023.10 × 490,032,935.80
  4. Step 4: Simplify right side
    817,188,015.40x = 600,673,563,430,556,416
  5. Step 5: Solve for x
    x = 600,673,563,430,556,416/817,188,015.40
  6. Step 6: Final answer
    x = 735,049,403.70

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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.