Finding the Fourth Proportional to 122,787,191.04, 169,445,284.26 and 67,781,866.56
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Solution
The fourth proportional to 122,787,191.04, 169,445,284.26 and 67,781,866.56 is: 93,538,402.09
Step by Step Solution
- Step 1: Write the proportion equation
122,787,191.04 : 169,445,284.26 = 67,781,866.56 : x - Step 2: Convert to fraction form
122,787,191.04/169,445,284.26 = 67,781,866.56/x - Step 3: Cross multiply
122,787,191.04x = 169,445,284.26 × 67,781,866.56 - Step 4: Simplify right side
122,787,191.04x = 11,485,317,646,932,588 - Step 5: Solve for x
x = 11,485,317,646,932,588/122,787,191.04 - Step 6: Final answer
x = 93,538,402.09
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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.