Finding the Fourth Proportional to 66,371,651.60, 99,358,411.80 and 58,409,027.60
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Solution
The fourth proportional to 66,371,651.60, 99,358,411.80 and 58,409,027.60 is: 87,438,357.75
Step by Step Solution
- Step 1: Write the proportion equation
66,371,651.60 : 99,358,411.80 = 58,409,027.60 : x - Step 2: Convert to fraction form
66,371,651.60/99,358,411.80 = 58,409,027.60/x - Step 3: Cross multiply
66,371,651.60x = 99,358,411.80 × 58,409,027.60 - Step 4: Simplify right side
66,371,651.60x = 5,803,428,217,118,366 - Step 5: Solve for x
x = 5,803,428,217,118,366/66,371,651.60 - Step 6: Final answer
x = 87,438,357.75
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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.