Finding the Fourth Proportional to 70,862,953.70, 97,790,875.53 and 38,267,902.82
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Solution
The fourth proportional to 70,862,953.70, 97,790,875.53 and 38,267,902.82 is: 52,809,705.58
Step by Step Solution
- Step 1: Write the proportion equation
70,862,953.70 : 97,790,875.53 = 38,267,902.82 : x - Step 2: Convert to fraction form
70,862,953.70/97,790,875.53 = 38,267,902.82/x - Step 3: Cross multiply
70,862,953.70x = 97,790,875.53 × 38,267,902.82 - Step 4: Simplify right side
70,862,953.70x = 3,742,251,721,464,756 - Step 5: Solve for x
x = 3,742,251,721,464,756/70,862,953.70 - Step 6: Final answer
x = 52,809,705.58
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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.