Home / 398,358,012.04-549,736,452.66-222,157,130.92

Finding the Fourth Proportional to 398,358,012.04, 549,736,452.66 and 222,157,130.92

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Solution

The fourth proportional to 398,358,012.04, 549,736,452.66 and 222,157,130.92 is: 306,578,176.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,358,012.04 : 549,736,452.66 = 222,157,130.92 : x
  2. Step 2: Convert to fraction form
    398,358,012.04/549,736,452.66 = 222,157,130.92/x
  3. Step 3: Cross multiply
    398,358,012.04x = 549,736,452.66 × 222,157,130.92
  4. Step 4: Simplify right side
    398,358,012.04x = 122,127,873,085,083,984
  5. Step 5: Solve for x
    x = 122,127,873,085,083,984/398,358,012.04
  6. Step 6: Final answer
    x = 306,578,176.90

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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.