Finding the Fourth Proportional to 68,717,840.19, 94,830,680.12 and 37,778,535.87
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Solution
The fourth proportional to 68,717,840.19, 94,830,680.12 and 37,778,535.87 is: 52,134,412.85
Step by Step Solution
- Step 1: Write the proportion equation
68,717,840.19 : 94,830,680.12 = 37,778,535.87 : x - Step 2: Convert to fraction form
68,717,840.19/94,830,680.12 = 37,778,535.87/x - Step 3: Cross multiply
68,717,840.19x = 94,830,680.12 × 37,778,535.87 - Step 4: Simplify right side
68,717,840.19x = 3,582,564,250,301,023 - Step 5: Solve for x
x = 3,582,564,250,301,023/68,717,840.19 - Step 6: Final answer
x = 52,134,412.85
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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.