Home / 549,206,819.20-823,810,228.80-290,322,006.40

Finding the Fourth Proportional to 549,206,819.20, 823,810,228.80 and 290,322,006.40

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Solution

The fourth proportional to 549,206,819.20, 823,810,228.80 and 290,322,006.40 is: 435,483,009.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,206,819.20 : 823,810,228.80 = 290,322,006.40 : x
  2. Step 2: Convert to fraction form
    549,206,819.20/823,810,228.80 = 290,322,006.40/x
  3. Step 3: Cross multiply
    549,206,819.20x = 823,810,228.80 × 290,322,006.40
  4. Step 4: Simplify right side
    549,206,819.20x = 239,170,238,518,059,040
  5. Step 5: Solve for x
    x = 239,170,238,518,059,040/549,206,819.20
  6. Step 6: Final answer
    x = 435,483,009.60

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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.