Home / 1,509,684,762.39-2,083,345,106.94-831,488,690.16

Finding the Fourth Proportional to 1,509,684,762.39, 2,083,345,106.94 and 831,488,690.16

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Solution

The fourth proportional to 1,509,684,762.39, 2,083,345,106.94 and 831,488,690.16 is: 1,147,443,451.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,509,684,762.39 : 2,083,345,106.94 = 831,488,690.16 : x
  2. Step 2: Convert to fraction form
    1,509,684,762.39/2,083,345,106.94 = 831,488,690.16/x
  3. Step 3: Cross multiply
    1,509,684,762.39x = 2,083,345,106.94 × 831,488,690.16
  4. Step 4: Simplify right side
    1,509,684,762.39x = 1,732,277,894,120,785,664
  5. Step 5: Solve for x
    x = 1,732,277,894,120,785,664/1,509,684,762.39
  6. Step 6: Final answer
    x = 1,147,443,451.29

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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.