Finding the Fourth Proportional to 134,830,484.95, 186,013,125.91 and 78,305,608.28
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Solution
The fourth proportional to 134,830,484.95, 186,013,125.91 and 78,305,608.28 is: 108,030,991.49
Step by Step Solution
- Step 1: Write the proportion equation
134,830,484.95 : 186,013,125.91 = 78,305,608.28 : x - Step 2: Convert to fraction form
134,830,484.95/186,013,125.91 = 78,305,608.28/x - Step 3: Cross multiply
134,830,484.95x = 186,013,125.91 × 78,305,608.28 - Step 4: Simplify right side
134,830,484.95x = 14,565,870,972,446,778 - Step 5: Solve for x
x = 14,565,870,972,446,778/134,830,484.95 - Step 6: Final answer
x = 108,030,991.49
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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.