Home / 319,862,690.40-479,794,040.64-77,525,594.40

Finding the Fourth Proportional to 319,862,690.40, 479,794,040.64 and 77,525,594.40

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Solution

The fourth proportional to 319,862,690.40, 479,794,040.64 and 77,525,594.40 is: 116,288,392.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,862,690.40 : 479,794,040.64 = 77,525,594.40 : x
  2. Step 2: Convert to fraction form
    319,862,690.40/479,794,040.64 = 77,525,594.40/x
  3. Step 3: Cross multiply
    319,862,690.40x = 479,794,040.64 × 77,525,594.40
  4. Step 4: Simplify right side
    319,862,690.40x = 37,196,318,190,193,760
  5. Step 5: Solve for x
    x = 37,196,318,190,193,760/319,862,690.40
  6. Step 6: Final answer
    x = 116,288,392.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.