Home / 390,299,991-585,462,117.06-144,717,736.92

Finding the Fourth Proportional to 390,299,991, 585,462,117.06 and 144,717,736.92

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Solution

The fourth proportional to 390,299,991, 585,462,117.06 and 144,717,736.92 is: 217,081,103.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,299,991 : 585,462,117.06 = 144,717,736.92 : x
  2. Step 2: Convert to fraction form
    390,299,991/585,462,117.06 = 144,717,736.92/x
  3. Step 3: Cross multiply
    390,299,991x = 585,462,117.06 × 144,717,736.92
  4. Step 4: Simplify right side
    390,299,991x = 84,726,752,633,315,312
  5. Step 5: Solve for x
    x = 84,726,752,633,315,312/390,299,991
  6. Step 6: Final answer
    x = 217,081,103.22

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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.