Finding the Fourth Proportional to 99,804,021,888.84, 137,777,042,652.69 and 66,863,828,479.49
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Solution
The fourth proportional to 99,804,021,888.84, 137,777,042,652.69 and 66,863,828,479.49 is: 92,303,900,924.97
Step by Step Solution
- Step 1: Write the proportion equation
99,804,021,888.84 : 137,777,042,652.69 = 66,863,828,479.49 : x - Step 2: Convert to fraction form
99,804,021,888.84/137,777,042,652.69 = 66,863,828,479.49/x - Step 3: Cross multiply
99,804,021,888.84x = 137,777,042,652.69 × 66,863,828,479.49 - Step 4: Simplify right side
99,804,021,888.84x = 9,212,300,548,340,841,447,424 - Step 5: Solve for x
x = 9,212,300,548,340,841,447,424/99,804,021,888.84 - Step 6: Final answer
x = 92,303,900,924.97
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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.