Home / 239,430,218.13-330,413,554.89-129,421,931.13

Finding the Fourth Proportional to 239,430,218.13, 330,413,554.89 and 129,421,931.13

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Solution

The fourth proportional to 239,430,218.13, 330,413,554.89 and 129,421,931.13 is: 178,602,185.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,430,218.13 : 330,413,554.89 = 129,421,931.13 : x
  2. Step 2: Convert to fraction form
    239,430,218.13/330,413,554.89 = 129,421,931.13/x
  3. Step 3: Cross multiply
    239,430,218.13x = 330,413,554.89 × 129,421,931.13
  4. Step 4: Simplify right side
    239,430,218.13x = 42,762,760,345,392,048
  5. Step 5: Solve for x
    x = 42,762,760,345,392,048/239,430,218.13
  6. Step 6: Final answer
    x = 178,602,185.97

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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.