Home / 427,476,841.76-589,973,678.52-239,376,765.80

Finding the Fourth Proportional to 427,476,841.76, 589,973,678.52 and 239,376,765.80

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Solution

The fourth proportional to 427,476,841.76, 589,973,678.52 and 239,376,765.80 is: 330,371,092.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,476,841.76 : 589,973,678.52 = 239,376,765.80 : x
  2. Step 2: Convert to fraction form
    427,476,841.76/589,973,678.52 = 239,376,765.80/x
  3. Step 3: Cross multiply
    427,476,841.76x = 589,973,678.52 × 239,376,765.80
  4. Step 4: Simplify right side
    427,476,841.76x = 141,225,991,071,246,528
  5. Step 5: Solve for x
    x = 141,225,991,071,246,528/427,476,841.76
  6. Step 6: Final answer
    x = 330,371,092.13

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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.