Finding the Fourth Proportional to 70,887,513.60, 97,824,855.84 and 38,292,465.60
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Solution
The fourth proportional to 70,887,513.60, 97,824,855.84 and 38,292,465.60 is: 52,843,649.56
Step by Step Solution
- Step 1: Write the proportion equation
70,887,513.60 : 97,824,855.84 = 38,292,465.60 : x - Step 2: Convert to fraction form
70,887,513.60/97,824,855.84 = 38,292,465.60/x - Step 3: Cross multiply
70,887,513.60x = 97,824,855.84 × 38,292,465.60 - Step 4: Simplify right side
70,887,513.60x = 3,745,954,927,078,159.50 - Step 5: Solve for x
x = 3,745,954,927,078,159.50/70,887,513.60 - Step 6: Final answer
x = 52,843,649.56
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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.