Finding the Fourth Proportional to 130,999,122.36, 180,775,596.42 and 72,260,501.40
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Solution
The fourth proportional to 130,999,122.36, 180,775,596.42 and 72,260,501.40 is: 99,717,730.95
Step by Step Solution
- Step 1: Write the proportion equation
130,999,122.36 : 180,775,596.42 = 72,260,501.40 : x - Step 2: Convert to fraction form
130,999,122.36/180,775,596.42 = 72,260,501.40/x - Step 3: Cross multiply
130,999,122.36x = 180,775,596.42 × 72,260,501.40 - Step 4: Simplify right side
130,999,122.36x = 13,062,935,238,193,246 - Step 5: Solve for x
x = 13,062,935,238,193,246/130,999,122.36 - Step 6: Final answer
x = 99,717,730.95
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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.