Home / 189,628,427.40-261,708,467.04-107,127,526.56

Finding the Fourth Proportional to 189,628,427.40, 261,708,467.04 and 107,127,526.56

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Solution

The fourth proportional to 189,628,427.40, 261,708,467.04 and 107,127,526.56 is: 147,847,984.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,628,427.40 : 261,708,467.04 = 107,127,526.56 : x
  2. Step 2: Convert to fraction form
    189,628,427.40/261,708,467.04 = 107,127,526.56/x
  3. Step 3: Cross multiply
    189,628,427.40x = 261,708,467.04 × 107,127,526.56
  4. Step 4: Simplify right side
    189,628,427.40x = 28,036,180,753,804,484
  5. Step 5: Solve for x
    x = 28,036,180,753,804,484/189,628,427.40
  6. Step 6: Final answer
    x = 147,847,984.28

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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.