Finding the Fourth Proportional to 78,902,472.74, 108,867,346.33 and 47,106,454.08
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Solution
The fourth proportional to 78,902,472.74, 108,867,346.33 and 47,106,454.08 is: 64,996,120.81
Step by Step Solution
- Step 1: Write the proportion equation
78,902,472.74 : 108,867,346.33 = 47,106,454.08 : x - Step 2: Convert to fraction form
78,902,472.74/108,867,346.33 = 47,106,454.08/x - Step 3: Cross multiply
78,902,472.74x = 108,867,346.33 × 47,106,454.08 - Step 4: Simplify right side
78,902,472.74x = 5,128,354,650,587,835 - Step 5: Solve for x
x = 5,128,354,650,587,835/78,902,472.74 - Step 6: Final answer
x = 64,996,120.81
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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.