Home / 1,213,781,059.08-1,675,017,188.34-685,149,610.50

Finding the Fourth Proportional to 1,213,781,059.08, 1,675,017,188.34 and 685,149,610.50

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Solution

The fourth proportional to 1,213,781,059.08, 1,675,017,188.34 and 685,149,610.50 is: 945,506,082.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,213,781,059.08 : 1,675,017,188.34 = 685,149,610.50 : x
  2. Step 2: Convert to fraction form
    1,213,781,059.08/1,675,017,188.34 = 685,149,610.50/x
  3. Step 3: Cross multiply
    1,213,781,059.08x = 1,675,017,188.34 × 685,149,610.50
  4. Step 4: Simplify right side
    1,213,781,059.08x = 1,147,637,374,171,956,096
  5. Step 5: Solve for x
    x = 1,147,637,374,171,956,096/1,213,781,059.08
  6. Step 6: Final answer
    x = 945,506,082.49

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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.