Finding the Fourth Proportional to 70,863,731.20, 97,791,948.80 and 38,268,680.96
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Solution
The fourth proportional to 70,863,731.20, 97,791,948.80 and 38,268,680.96 is: 52,810,779.59
Step by Step Solution
- Step 1: Write the proportion equation
70,863,731.20 : 97,791,948.80 = 38,268,680.96 : x - Step 2: Convert to fraction form
70,863,731.20/97,791,948.80 = 38,268,680.96/x - Step 3: Cross multiply
70,863,731.20x = 97,791,948.80 × 38,268,680.96 - Step 4: Simplify right side
70,863,731.20x = 3,742,368,889,083,855 - Step 5: Solve for x
x = 3,742,368,889,083,855/70,863,731.20 - Step 6: Final answer
x = 52,810,779.59
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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.