Home / 65,421,928.64-90,221,026.56-51,703,664.96

Finding the Fourth Proportional to 65,421,928.64, 90,221,026.56 and 51,703,664.96

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Solution

The fourth proportional to 65,421,928.64, 90,221,026.56 and 51,703,664.96 is: 71,302,662.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,421,928.64 : 90,221,026.56 = 51,703,664.96 : x
  2. Step 2: Convert to fraction form
    65,421,928.64/90,221,026.56 = 51,703,664.96/x
  3. Step 3: Cross multiply
    65,421,928.64x = 90,221,026.56 × 51,703,664.96
  4. Step 4: Simplify right side
    65,421,928.64x = 4,664,757,729,605,502
  5. Step 5: Solve for x
    x = 4,664,757,729,605,502/65,421,928.64
  6. Step 6: Final answer
    x = 71,302,662.98

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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.