Finding the Fourth Proportional to 66,424,237.20, 99,678,346.20 and 39,130,477.20
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Solution
The fourth proportional to 66,424,237.20, 99,678,346.20 and 39,130,477.20 is: 58,720,452.32
Step by Step Solution
- Step 1: Write the proportion equation
66,424,237.20 : 99,678,346.20 = 39,130,477.20 : x - Step 2: Convert to fraction form
66,424,237.20/99,678,346.20 = 39,130,477.20/x - Step 3: Cross multiply
66,424,237.20x = 99,678,346.20 × 39,130,477.20 - Step 4: Simplify right side
66,424,237.20x = 3,900,461,253,312,807 - Step 5: Solve for x
x = 3,900,461,253,312,807/66,424,237.20 - Step 6: Final answer
x = 58,720,452.32
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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.