Home / 839,808,609.80-1,259,712,914.70-294,353,313.80

Finding the Fourth Proportional to 839,808,609.80, 1,259,712,914.70 and 294,353,313.80

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Solution

The fourth proportional to 839,808,609.80, 1,259,712,914.70 and 294,353,313.80 is: 441,529,970.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,808,609.80 : 1,259,712,914.70 = 294,353,313.80 : x
  2. Step 2: Convert to fraction form
    839,808,609.80/1,259,712,914.70 = 294,353,313.80/x
  3. Step 3: Cross multiply
    839,808,609.80x = 1,259,712,914.70 × 294,353,313.80
  4. Step 4: Simplify right side
    839,808,609.80x = 370,800,670,878,601,792
  5. Step 5: Solve for x
    x = 370,800,670,878,601,792/839,808,609.80
  6. Step 6: Final answer
    x = 441,529,970.70

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Double scale
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1.5x scale

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.