Finding the Fourth Proportional to 79,128,631.17, 118,549,455.84 and 77,406,762.33
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Solution
The fourth proportional to 79,128,631.17, 118,549,455.84 and 77,406,762.33 is: 115,969,775.00
Step by Step Solution
- Step 1: Write the proportion equation
79,128,631.17 : 118,549,455.84 = 77,406,762.33 : x - Step 2: Convert to fraction form
79,128,631.17/118,549,455.84 = 77,406,762.33/x - Step 3: Cross multiply
79,128,631.17x = 118,549,455.84 × 77,406,762.33 - Step 4: Simplify right side
79,128,631.17x = 9,176,529,552,557,710 - Step 5: Solve for x
x = 9,176,529,552,557,710/79,128,631.17 - Step 6: Final answer
x = 115,969,775.00
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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.