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Finding the Fourth Proportional to 709,364,670.72, 979,599,289.92 and 670,718,797.44

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Solution

The fourth proportional to 709,364,670.72, 979,599,289.92 and 670,718,797.44 is: 926,231,154.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,364,670.72 : 979,599,289.92 = 670,718,797.44 : x
  2. Step 2: Convert to fraction form
    709,364,670.72/979,599,289.92 = 670,718,797.44/x
  3. Step 3: Cross multiply
    709,364,670.72x = 979,599,289.92 × 670,718,797.44
  4. Step 4: Simplify right side
    709,364,670.72x = 657,035,657,708,220,288
  5. Step 5: Solve for x
    x = 657,035,657,708,220,288/709,364,670.72
  6. Step 6: Final answer
    x = 926,231,154.20

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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.