Home / 538,120,554.30-742,606,358.13-290,601,886.68

Finding the Fourth Proportional to 538,120,554.30, 742,606,358.13 and 290,601,886.68

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Solution

The fourth proportional to 538,120,554.30, 742,606,358.13 and 290,601,886.68 is: 401,030,599.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,120,554.30 : 742,606,358.13 = 290,601,886.68 : x
  2. Step 2: Convert to fraction form
    538,120,554.30/742,606,358.13 = 290,601,886.68/x
  3. Step 3: Cross multiply
    538,120,554.30x = 742,606,358.13 × 290,601,886.68
  4. Step 4: Simplify right side
    538,120,554.30x = 215,802,808,733,141,760
  5. Step 5: Solve for x
    x = 215,802,808,733,141,760/538,120,554.30
  6. Step 6: Final answer
    x = 401,030,599.94

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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.