Finding the Fourth Proportional to 57,768,134.60, 86,631,206.70 and 19,430,899.40
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Solution
The fourth proportional to 57,768,134.60, 86,631,206.70 and 19,430,899.40 is: 29,139,287.15
Step by Step Solution
- Step 1: Write the proportion equation
57,768,134.60 : 86,631,206.70 = 19,430,899.40 : x - Step 2: Convert to fraction form
57,768,134.60/86,631,206.70 = 19,430,899.40/x - Step 3: Cross multiply
57,768,134.60x = 86,631,206.70 × 19,430,899.40 - Step 4: Simplify right side
57,768,134.60x = 1,683,322,262,288,306 - Step 5: Solve for x
x = 1,683,322,262,288,306/57,768,134.60 - Step 6: Final answer
x = 29,139,287.15
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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.