Home / 128,873,539.04-193,055,215.63-112,717,732.64

Finding the Fourth Proportional to 128,873,539.04, 193,055,215.63 and 112,717,732.64

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Solution

The fourth proportional to 128,873,539.04, 193,055,215.63 and 112,717,732.64 is: 168,853,484.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,873,539.04 : 193,055,215.63 = 112,717,732.64 : x
  2. Step 2: Convert to fraction form
    128,873,539.04/193,055,215.63 = 112,717,732.64/x
  3. Step 3: Cross multiply
    128,873,539.04x = 193,055,215.63 × 112,717,732.64
  4. Step 4: Simplify right side
    128,873,539.04x = 21,760,746,180,139,888
  5. Step 5: Solve for x
    x = 21,760,746,180,139,888/128,873,539.04
  6. Step 6: Final answer
    x = 168,853,484.91

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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.