Home / 990,867,068.37-1,486,266,940.52-253,944,208.89

Finding the Fourth Proportional to 990,867,068.37, 1,486,266,940.52 and 253,944,208.89

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Solution

The fourth proportional to 990,867,068.37, 1,486,266,940.52 and 253,944,208.89 is: 380,907,686.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,867,068.37 : 1,486,266,940.52 = 253,944,208.89 : x
  2. Step 2: Convert to fraction form
    990,867,068.37/1,486,266,940.52 = 253,944,208.89/x
  3. Step 3: Cross multiply
    990,867,068.37x = 1,486,266,940.52 × 253,944,208.89
  4. Step 4: Simplify right side
    990,867,068.37x = 377,428,882,410,829,440
  5. Step 5: Solve for x
    x = 377,428,882,410,829,440/990,867,068.37
  6. Step 6: Final answer
    x = 380,907,686.27

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.