Finding the Fourth Proportional to 93,193,879.56, 128,615,207.40 and 51,381,774.60
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Solution
The fourth proportional to 93,193,879.56, 128,615,207.40 and 51,381,774.60 is: 70,911,068.71
Step by Step Solution
- Step 1: Write the proportion equation
93,193,879.56 : 128,615,207.40 = 51,381,774.60 : x - Step 2: Convert to fraction form
93,193,879.56/128,615,207.40 = 51,381,774.60/x - Step 3: Cross multiply
93,193,879.56x = 128,615,207.40 × 51,381,774.60 - Step 4: Simplify right side
93,193,879.56x = 6,608,477,596,759,053 - Step 5: Solve for x
x = 6,608,477,596,759,053/93,193,879.56 - Step 6: Final answer
x = 70,911,068.71
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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.