Home / 135,793,219,713.96-187,404,547,564.98-78,715,265,886.12

Finding the Fourth Proportional to 135,793,219,713.96, 187,404,547,564.98 and 78,715,265,886.12

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Solution

The fourth proportional to 135,793,219,713.96, 187,404,547,564.98 and 78,715,265,886.12 is: 108,632,808,183.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,793,219,713.96 : 187,404,547,564.98 = 78,715,265,886.12 : x
  2. Step 2: Convert to fraction form
    135,793,219,713.96/187,404,547,564.98 = 78,715,265,886.12/x
  3. Step 3: Cross multiply
    135,793,219,713.96x = 187,404,547,564.98 × 78,715,265,886.12
  4. Step 4: Simplify right side
    135,793,219,713.96x = 14,751,598,789,845,422,440,448
  5. Step 5: Solve for x
    x = 14,751,598,789,845,422,440,448/135,793,219,713.96
  6. Step 6: Final answer
    x = 108,632,808,183.79

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1.5x scale

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.