Finding the Fourth Proportional to 117,636,221.10, 176,292,904.68 and 74,428,075.20
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Solution
The fourth proportional to 117,636,221.10, 176,292,904.68 and 74,428,075.20 is: 111,539,978.45
Step by Step Solution
- Step 1: Write the proportion equation
117,636,221.10 : 176,292,904.68 = 74,428,075.20 : x - Step 2: Convert to fraction form
117,636,221.10/176,292,904.68 = 74,428,075.20/x - Step 3: Cross multiply
117,636,221.10x = 176,292,904.68 × 74,428,075.20 - Step 4: Simplify right side
117,636,221.10x = 13,121,141,566,749,472 - Step 5: Solve for x
x = 13,121,141,566,749,472/117,636,221.10 - Step 6: Final answer
x = 111,539,978.45
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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.