Home / 889,386,498.67-1,227,353,343.78-492,969,045.68

Finding the Fourth Proportional to 889,386,498.67, 1,227,353,343.78 and 492,969,045.68

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Solution

The fourth proportional to 889,386,498.67, 1,227,353,343.78 and 492,969,045.68 is: 680,297,269.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    889,386,498.67 : 1,227,353,343.78 = 492,969,045.68 : x
  2. Step 2: Convert to fraction form
    889,386,498.67/1,227,353,343.78 = 492,969,045.68/x
  3. Step 3: Cross multiply
    889,386,498.67x = 1,227,353,343.78 × 492,969,045.68
  4. Step 4: Simplify right side
    889,386,498.67x = 605,047,206,595,383,552
  5. Step 5: Solve for x
    x = 605,047,206,595,383,552/889,386,498.67
  6. Step 6: Final answer
    x = 680,297,269.52

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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.