Home / 1,312,786,596.40-1,811,650,961.26-709,957,219.46

Finding the Fourth Proportional to 1,312,786,596.40, 1,811,650,961.26 and 709,957,219.46

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Solution

The fourth proportional to 1,312,786,596.40, 1,811,650,961.26 and 709,957,219.46 is: 979,743,914.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,312,786,596.40 : 1,811,650,961.26 = 709,957,219.46 : x
  2. Step 2: Convert to fraction form
    1,312,786,596.40/1,811,650,961.26 = 709,957,219.46/x
  3. Step 3: Cross multiply
    1,312,786,596.40x = 1,811,650,961.26 × 709,957,219.46
  4. Step 4: Simplify right side
    1,312,786,596.40x = 1,286,194,679,090,939,904
  5. Step 5: Solve for x
    x = 1,286,194,679,090,939,904/1,312,786,596.40
  6. Step 6: Final answer
    x = 979,743,914.68

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Double scale
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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.