Finding the Fourth Proportional to 122,742,353.16, 169,388,402.04 and 69,817,691.88
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Solution
The fourth proportional to 122,742,353.16, 169,388,402.04 and 69,817,691.88 is: 96,350,664.28
Step by Step Solution
- Step 1: Write the proportion equation
122,742,353.16 : 169,388,402.04 = 69,817,691.88 : x - Step 2: Convert to fraction form
122,742,353.16/169,388,402.04 = 69,817,691.88/x - Step 3: Cross multiply
122,742,353.16x = 169,388,402.04 × 69,817,691.88 - Step 4: Simplify right side
122,742,353.16x = 11,826,307,261,674,282 - Step 5: Solve for x
x = 11,826,307,261,674,282/122,742,353.16 - Step 6: Final answer
x = 96,350,664.28
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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.