Finding the Fourth Proportional to 130,914,110.36, 180,653,147.70 and 72,173,564.84
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Solution
The fourth proportional to 130,914,110.36, 180,653,147.70 and 72,173,564.84 is: 99,594,930.09
Step by Step Solution
- Step 1: Write the proportion equation
130,914,110.36 : 180,653,147.70 = 72,173,564.84 : x - Step 2: Convert to fraction form
130,914,110.36/180,653,147.70 = 72,173,564.84/x - Step 3: Cross multiply
130,914,110.36x = 180,653,147.70 × 72,173,564.84 - Step 4: Simplify right side
130,914,110.36x = 13,038,381,669,076,046 - Step 5: Solve for x
x = 13,038,381,669,076,046/130,914,110.36 - Step 6: Final answer
x = 99,594,930.09
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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.