Finding the Fourth Proportional to 77,684,406,923.20, 107,203,340,645.35 and 43,390,613,953.64
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Solution
The fourth proportional to 77,684,406,923.20, 107,203,340,645.35 and 43,390,613,953.64 is: 59,878,410,001.67
Step by Step Solution
- Step 1: Write the proportion equation
77,684,406,923.20 : 107,203,340,645.35 = 43,390,613,953.64 : x - Step 2: Convert to fraction form
77,684,406,923.20/107,203,340,645.35 = 43,390,613,953.64/x - Step 3: Cross multiply
77,684,406,923.20x = 107,203,340,645.35 × 43,390,613,953.64 - Step 4: Simplify right side
77,684,406,923.20x = 4,651,618,768,483,267,379,200 - Step 5: Solve for x
x = 4,651,618,768,483,267,379,200/77,684,406,923.20 - Step 6: Final answer
x = 59,878,410,001.67
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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.