Finding the Fourth Proportional to 117,562,997.63, 175,960,681.36 and 86,430,436.02
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Solution
The fourth proportional to 117,562,997.63, 175,960,681.36 and 86,430,436.02 is: 129,363,479.31
Step by Step Solution
- Step 1: Write the proportion equation
117,562,997.63 : 175,960,681.36 = 86,430,436.02 : x - Step 2: Convert to fraction form
117,562,997.63/175,960,681.36 = 86,430,436.02/x - Step 3: Cross multiply
117,562,997.63x = 175,960,681.36 × 86,430,436.02 - Step 4: Simplify right side
117,562,997.63x = 15,208,358,412,105,008 - Step 5: Solve for x
x = 15,208,358,412,105,008/117,562,997.63 - Step 6: Final answer
x = 129,363,479.31
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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.