Finding the Fourth Proportional to 77,137,729.63, 106,444,826.11 and 42,332,662.09
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Solution
The fourth proportional to 77,137,729.63, 106,444,826.11 and 42,332,662.09 is: 58,416,197.58
Step by Step Solution
- Step 1: Write the proportion equation
77,137,729.63 : 106,444,826.11 = 42,332,662.09 : x - Step 2: Convert to fraction form
77,137,729.63/106,444,826.11 = 42,332,662.09/x - Step 3: Cross multiply
77,137,729.63x = 106,444,826.11 × 42,332,662.09 - Step 4: Simplify right side
77,137,729.63x = 4,506,092,854,943,440 - Step 5: Solve for x
x = 4,506,092,854,943,440/77,137,729.63 - Step 6: Final answer
x = 58,416,197.58
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.