Home / 774,637,966.08-1,068,990,987.52-422,212,867.20

Finding the Fourth Proportional to 774,637,966.08, 1,068,990,987.52 and 422,212,867.20

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Solution

The fourth proportional to 774,637,966.08, 1,068,990,987.52 and 422,212,867.20 is: 582,648,630.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    774,637,966.08 : 1,068,990,987.52 = 422,212,867.20 : x
  2. Step 2: Convert to fraction form
    774,637,966.08/1,068,990,987.52 = 422,212,867.20/x
  3. Step 3: Cross multiply
    774,637,966.08x = 1,068,990,987.52 × 422,212,867.20
  4. Step 4: Simplify right side
    774,637,966.08x = 451,341,749,851,778,624
  5. Step 5: Solve for x
    x = 451,341,749,851,778,624/774,637,966.08
  6. Step 6: Final answer
    x = 582,648,630.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.