Home / 1,509,684,760.89-2,083,345,104.87-831,488,688.65

Finding the Fourth Proportional to 1,509,684,760.89, 2,083,345,104.87 and 831,488,688.65

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Solution

The fourth proportional to 1,509,684,760.89, 2,083,345,104.87 and 831,488,688.65 is: 1,147,443,449.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,509,684,760.89 : 2,083,345,104.87 = 831,488,688.65 : x
  2. Step 2: Convert to fraction form
    1,509,684,760.89/2,083,345,104.87 = 831,488,688.65/x
  3. Step 3: Cross multiply
    1,509,684,760.89x = 2,083,345,104.87 × 831,488,688.65
  4. Step 4: Simplify right side
    1,509,684,760.89x = 1,732,277,889,258,961,408
  5. Step 5: Solve for x
    x = 1,732,277,889,258,961,408/1,509,684,760.89
  6. Step 6: Final answer
    x = 1,147,443,449.21

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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.