Finding the Fourth Proportional to 75,908,028.60, 104,674,787.46 and 64,931,118.12
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Solution
The fourth proportional to 75,908,028.60, 104,674,787.46 and 64,931,118.12 is: 89,537,972.65
Step by Step Solution
- Step 1: Write the proportion equation
75,908,028.60 : 104,674,787.46 = 64,931,118.12 : x - Step 2: Convert to fraction form
75,908,028.60/104,674,787.46 = 64,931,118.12/x - Step 3: Cross multiply
75,908,028.60x = 104,674,787.46 × 64,931,118.12 - Step 4: Simplify right side
75,908,028.60x = 6,796,650,988,751,154 - Step 5: Solve for x
x = 6,796,650,988,751,154/75,908,028.60 - Step 6: Final answer
x = 89,537,972.65
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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.