Home / 723,508,653.60-1,085,262,980.40-448,009,639.20

Finding the Fourth Proportional to 723,508,653.60, 1,085,262,980.40 and 448,009,639.20

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Solution

The fourth proportional to 723,508,653.60, 1,085,262,980.40 and 448,009,639.20 is: 672,014,458.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,508,653.60 : 1,085,262,980.40 = 448,009,639.20 : x
  2. Step 2: Convert to fraction form
    723,508,653.60/1,085,262,980.40 = 448,009,639.20/x
  3. Step 3: Cross multiply
    723,508,653.60x = 1,085,262,980.40 × 448,009,639.20
  4. Step 4: Simplify right side
    723,508,653.60x = 486,208,276,286,120,704
  5. Step 5: Solve for x
    x = 486,208,276,286,120,704/723,508,653.60
  6. Step 6: Final answer
    x = 672,014,458.80

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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.