Home / 76,382,873,711.45-105,403,616,292.88-42,086,661,018.75

Finding the Fourth Proportional to 76,382,873,711.45, 105,403,616,292.88 and 42,086,661,018.75

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Solution

The fourth proportional to 76,382,873,711.45, 105,403,616,292.88 and 42,086,661,018.75 is: 58,076,975,289.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,382,873,711.45 : 105,403,616,292.88 = 42,086,661,018.75 : x
  2. Step 2: Convert to fraction form
    76,382,873,711.45/105,403,616,292.88 = 42,086,661,018.75/x
  3. Step 3: Cross multiply
    76,382,873,711.45x = 105,403,616,292.88 × 42,086,661,018.75
  4. Step 4: Simplify right side
    76,382,873,711.45x = 4,436,086,269,068,835,291,136
  5. Step 5: Solve for x
    x = 4,436,086,269,068,835,291,136/76,382,873,711.45
  6. Step 6: Final answer
    x = 58,076,975,289.34

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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.