Finding the Fourth Proportional to 79,640,044.18, 109,908,784.64 and 48,279,415.02
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Solution
The fourth proportional to 79,640,044.18, 109,908,784.64 and 48,279,415.02 is: 66,628,941.28
Step by Step Solution
- Step 1: Write the proportion equation
79,640,044.18 : 109,908,784.64 = 48,279,415.02 : x - Step 2: Convert to fraction form
79,640,044.18/109,908,784.64 = 48,279,415.02/x - Step 3: Cross multiply
79,640,044.18x = 109,908,784.64 × 48,279,415.02 - Step 4: Simplify right side
79,640,044.18x = 5,306,331,827,686,902 - Step 5: Solve for x
x = 5,306,331,827,686,902/79,640,044.18 - Step 6: Final answer
x = 66,628,941.28
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.