Home / 1,216,093,909.46-1,678,164,634.95-659,164,999.10

Finding the Fourth Proportional to 1,216,093,909.46, 1,678,164,634.95 and 659,164,999.10

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Solution

The fourth proportional to 1,216,093,909.46, 1,678,164,634.95 and 659,164,999.10 is: 909,623,328.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,216,093,909.46 : 1,678,164,634.95 = 659,164,999.10 : x
  2. Step 2: Convert to fraction form
    1,216,093,909.46/1,678,164,634.95 = 659,164,999.10/x
  3. Step 3: Cross multiply
    1,216,093,909.46x = 1,678,164,634.95 × 659,164,999.10
  4. Step 4: Simplify right side
    1,216,093,909.46x = 1,106,187,390,086,468,608
  5. Step 5: Solve for x
    x = 1,106,187,390,086,468,608/1,216,093,909.46
  6. Step 6: Final answer
    x = 909,623,328.82

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Half scale
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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.