Home / 368,954,373.78-509,160,423.76-210,182,143.59

Finding the Fourth Proportional to 368,954,373.78, 509,160,423.76 and 210,182,143.59

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Solution

The fourth proportional to 368,954,373.78, 509,160,423.76 and 210,182,143.59 is: 290,053,288.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,954,373.78 : 509,160,423.76 = 210,182,143.59 : x
  2. Step 2: Convert to fraction form
    368,954,373.78/509,160,423.76 = 210,182,143.59/x
  3. Step 3: Cross multiply
    368,954,373.78x = 509,160,423.76 × 210,182,143.59
  4. Step 4: Simplify right side
    368,954,373.78x = 107,016,429,296,544,112
  5. Step 5: Solve for x
    x = 107,016,429,296,544,112/368,954,373.78
  6. Step 6: Final answer
    x = 290,053,288.16

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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.