Home / 239,398,793.76-330,370,186.15-129,390,506.76

Finding the Fourth Proportional to 239,398,793.76, 330,370,186.15 and 129,390,506.76

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Solution

The fourth proportional to 239,398,793.76, 330,370,186.15 and 129,390,506.76 is: 178,558,818.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,398,793.76 : 330,370,186.15 = 129,390,506.76 : x
  2. Step 2: Convert to fraction form
    239,398,793.76/330,370,186.15 = 129,390,506.76/x
  3. Step 3: Cross multiply
    239,398,793.76x = 330,370,186.15 × 129,390,506.76
  4. Step 4: Simplify right side
    239,398,793.76x = 42,746,765,805,379,776
  5. Step 5: Solve for x
    x = 42,746,765,805,379,776/239,398,793.76
  6. Step 6: Final answer
    x = 178,558,818.67

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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.