Finding the Fourth Proportional to 155,955,235.68, 215,254,396.08 and 103,746,471.84
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Solution
The fourth proportional to 155,955,235.68, 215,254,396.08 and 103,746,471.84 is: 143,194,193.15
Step by Step Solution
- Step 1: Write the proportion equation
155,955,235.68 : 215,254,396.08 = 103,746,471.84 : x - Step 2: Convert to fraction form
155,955,235.68/215,254,396.08 = 103,746,471.84/x - Step 3: Cross multiply
155,955,235.68x = 215,254,396.08 × 103,746,471.84 - Step 4: Simplify right side
155,955,235.68x = 22,331,884,141,349,928 - Step 5: Solve for x
x = 22,331,884,141,349,928/155,955,235.68 - Step 6: Final answer
x = 143,194,193.15
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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.