Finding the Fourth Proportional to 122,779,133.94, 169,429,253.67 and 69,850,856.82
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Solution
The fourth proportional to 122,779,133.94, 169,429,253.67 and 69,850,856.82 is: 96,390,796.70
Step by Step Solution
- Step 1: Write the proportion equation
122,779,133.94 : 169,429,253.67 = 69,850,856.82 : x - Step 2: Convert to fraction form
122,779,133.94/169,429,253.67 = 69,850,856.82/x - Step 3: Cross multiply
122,779,133.94x = 169,429,253.67 × 69,850,856.82 - Step 4: Simplify right side
122,779,133.94x = 11,834,778,539,222,628 - Step 5: Solve for x
x = 11,834,778,539,222,628/122,779,133.94 - Step 6: Final answer
x = 96,390,796.70
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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.