Home / 1,438,940,740.10-2,158,411,110.15-826,720,708.10

Finding the Fourth Proportional to 1,438,940,740.10, 2,158,411,110.15 and 826,720,708.10

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Solution

The fourth proportional to 1,438,940,740.10, 2,158,411,110.15 and 826,720,708.10 is: 1,240,081,062.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,438,940,740.10 : 2,158,411,110.15 = 826,720,708.10 : x
  2. Step 2: Convert to fraction form
    1,438,940,740.10/2,158,411,110.15 = 826,720,708.10/x
  3. Step 3: Cross multiply
    1,438,940,740.10x = 2,158,411,110.15 × 826,720,708.10
  4. Step 4: Simplify right side
    1,438,940,740.10x = 1,784,403,161,354,115,328
  5. Step 5: Solve for x
    x = 1,784,403,161,354,115,328/1,438,940,740.10
  6. Step 6: Final answer
    x = 1,240,081,062.15

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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.