Finding the Fourth Proportional to 93,362,868.77, 128,720,966.12 and 76,555,678.08
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Solution
The fourth proportional to 93,362,868.77, 128,720,966.12 and 76,555,678.08 is: 105,548,608.08
Step by Step Solution
- Step 1: Write the proportion equation
93,362,868.77 : 128,720,966.12 = 76,555,678.08 : x - Step 2: Convert to fraction form
93,362,868.77/128,720,966.12 = 76,555,678.08/x - Step 3: Cross multiply
93,362,868.77x = 128,720,966.12 × 76,555,678.08 - Step 4: Simplify right side
93,362,868.77x = 9,854,320,844,046,528 - Step 5: Solve for x
x = 9,854,320,844,046,528/93,362,868.77 - Step 6: Final answer
x = 105,548,608.08
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.