Home / 76,382,873,711.52-105,403,616,292.96-42,086,661,018.78

Finding the Fourth Proportional to 76,382,873,711.52, 105,403,616,292.96 and 42,086,661,018.78

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Solution

The fourth proportional to 76,382,873,711.52, 105,403,616,292.96 and 42,086,661,018.78 is: 58,076,975,289.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,382,873,711.52 : 105,403,616,292.96 = 42,086,661,018.78 : x
  2. Step 2: Convert to fraction form
    76,382,873,711.52/105,403,616,292.96 = 42,086,661,018.78/x
  3. Step 3: Cross multiply
    76,382,873,711.52x = 105,403,616,292.96 × 42,086,661,018.78
  4. Step 4: Simplify right side
    76,382,873,711.52x = 4,436,086,269,075,364,249,600
  5. Step 5: Solve for x
    x = 4,436,086,269,075,364,249,600/76,382,873,711.52
  6. Step 6: Final answer
    x = 58,076,975,289.37

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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.