Home / 881,232,359.92-1,216,123,347.90-484,765,534.96

Finding the Fourth Proportional to 881,232,359.92, 1,216,123,347.90 and 484,765,534.96

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Solution

The fourth proportional to 881,232,359.92, 1,216,123,347.90 and 484,765,534.96 is: 668,988,920.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    881,232,359.92 : 1,216,123,347.90 = 484,765,534.96 : x
  2. Step 2: Convert to fraction form
    881,232,359.92/1,216,123,347.90 = 484,765,534.96/x
  3. Step 3: Cross multiply
    881,232,359.92x = 1,216,123,347.90 × 484,765,534.96
  4. Step 4: Simplify right side
    881,232,359.92x = 589,534,685,322,089,728
  5. Step 5: Solve for x
    x = 589,534,685,322,089,728/881,232,359.92
  6. Step 6: Final answer
    x = 668,988,920.67

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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.