Finding the Fourth Proportional to 117,562,998.63, 175,960,682.85 and 86,430,437.02
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Solution
The fourth proportional to 117,562,998.63, 175,960,682.85 and 86,430,437.02 is: 129,363,480.81
Step by Step Solution
- Step 1: Write the proportion equation
117,562,998.63 : 175,960,682.85 = 86,430,437.02 : x - Step 2: Convert to fraction form
117,562,998.63/175,960,682.85 = 86,430,437.02/x - Step 3: Cross multiply
117,562,998.63x = 175,960,682.85 × 86,430,437.02 - Step 4: Simplify right side
117,562,998.63x = 15,208,358,717,063,118 - Step 5: Solve for x
x = 15,208,358,717,063,118/117,562,998.63 - Step 6: Final answer
x = 129,363,480.81
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.