Home / 1,381,610,536.80-1,906,619,438.16-786,894,980.64

Finding the Fourth Proportional to 1,381,610,536.80, 1,906,619,438.16 and 786,894,980.64

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Solution

The fourth proportional to 1,381,610,536.80, 1,906,619,438.16 and 786,894,980.64 is: 1,085,913,306.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,381,610,536.80 : 1,906,619,438.16 = 786,894,980.64 : x
  2. Step 2: Convert to fraction form
    1,381,610,536.80/1,906,619,438.16 = 786,894,980.64/x
  3. Step 3: Cross multiply
    1,381,610,536.80x = 1,906,619,438.16 × 786,894,980.64
  4. Step 4: Simplify right side
    1,381,610,536.80x = 1,500,309,265,878,760,960
  5. Step 5: Solve for x
    x = 1,500,309,265,878,760,960/1,381,610,536.80
  6. Step 6: Final answer
    x = 1,085,913,306.19

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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.