Finding the Fourth Proportional to 57,768,099.60, 86,631,154.20 and 19,430,864.40
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Solution
The fourth proportional to 57,768,099.60, 86,631,154.20 and 19,430,864.40 is: 29,139,234.66
Step by Step Solution
- Step 1: Write the proportion equation
57,768,099.60 : 86,631,154.20 = 19,430,864.40 : x - Step 2: Convert to fraction form
57,768,099.60/86,631,154.20 = 19,430,864.40/x - Step 3: Cross multiply
57,768,099.60x = 86,631,154.20 × 19,430,864.40 - Step 4: Simplify right side
57,768,099.60x = 1,683,318,210,075,690.50 - Step 5: Solve for x
x = 1,683,318,210,075,690.50/57,768,099.60 - Step 6: Final answer
x = 29,139,234.66
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.