Home / 239,430,200.13-330,413,530.05-129,421,913.13

Finding the Fourth Proportional to 239,430,200.13, 330,413,530.05 and 129,421,913.13

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Solution

The fourth proportional to 239,430,200.13, 330,413,530.05 and 129,421,913.13 is: 178,602,161.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,430,200.13 : 330,413,530.05 = 129,421,913.13 : x
  2. Step 2: Convert to fraction form
    239,430,200.13/330,413,530.05 = 129,421,913.13/x
  3. Step 3: Cross multiply
    239,430,200.13x = 330,413,530.05 × 129,421,913.13
  4. Step 4: Simplify right side
    239,430,200.13x = 42,762,751,183,107,744
  5. Step 5: Solve for x
    x = 42,762,751,183,107,744/239,430,200.13
  6. Step 6: Final answer
    x = 178,602,161.13

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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.