Finding the Fourth Proportional to 638,550,009,447.93, 881,204,508,306.08 and 364,209,558,013.62
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Solution
The fourth proportional to 638,550,009,447.93, 881,204,508,306.08 and 364,209,558,013.62 is: 502,612,324,392.95
Step by Step Solution
- Step 1: Write the proportion equation
638,550,009,447.93 : 881,204,508,306.08 = 364,209,558,013.62 : x - Step 2: Convert to fraction form
638,550,009,447.93/881,204,508,306.08 = 364,209,558,013.62/x - Step 3: Cross multiply
638,550,009,447.93x = 881,204,508,306.08 × 364,209,558,013.62 - Step 4: Simplify right side
638,550,009,447.93x = 320,943,104,489,766,697,041,920 - Step 5: Solve for x
x = 320,943,104,489,766,697,041,920/638,550,009,447.93 - Step 6: Final answer
x = 502,612,324,392.95
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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.