Home / 398,358,011.04-549,736,451.28-222,157,129.92

Finding the Fourth Proportional to 398,358,011.04, 549,736,451.28 and 222,157,129.92

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Solution

The fourth proportional to 398,358,011.04, 549,736,451.28 and 222,157,129.92 is: 306,578,175.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,358,011.04 : 549,736,451.28 = 222,157,129.92 : x
  2. Step 2: Convert to fraction form
    398,358,011.04/549,736,451.28 = 222,157,129.92/x
  3. Step 3: Cross multiply
    398,358,011.04x = 549,736,451.28 × 222,157,129.92
  4. Step 4: Simplify right side
    398,358,011.04x = 122,127,872,228,770,704
  5. Step 5: Solve for x
    x = 122,127,872,228,770,704/398,358,011.04
  6. Step 6: Final answer
    x = 306,578,175.52

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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.