Home / 988,446,257.95-1,364,076,674.87-542,405,719.66

Finding the Fourth Proportional to 988,446,257.95, 1,364,076,674.87 and 542,405,719.66

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Solution

The fourth proportional to 988,446,257.95, 1,364,076,674.87 and 542,405,719.66 is: 748,531,328.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    988,446,257.95 : 1,364,076,674.87 = 542,405,719.66 : x
  2. Step 2: Convert to fraction form
    988,446,257.95/1,364,076,674.87 = 542,405,719.66/x
  3. Step 3: Cross multiply
    988,446,257.95x = 1,364,076,674.87 × 542,405,719.66
  4. Step 4: Simplify right side
    988,446,257.95x = 739,882,990,504,282,112
  5. Step 5: Solve for x
    x = 739,882,990,504,282,112/988,446,257.95
  6. Step 6: Final answer
    x = 748,531,328.39

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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.