Finding the Fourth Proportional to 72,326,762.24, 99,812,005.44 and 39,287,655.68
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Solution
The fourth proportional to 72,326,762.24, 99,812,005.44 and 39,287,655.68 is: 54,217,547.99
Step by Step Solution
- Step 1: Write the proportion equation
72,326,762.24 : 99,812,005.44 = 39,287,655.68 : x - Step 2: Convert to fraction form
72,326,762.24/99,812,005.44 = 39,287,655.68/x - Step 3: Cross multiply
72,326,762.24x = 99,812,005.44 × 39,287,655.68 - Step 4: Simplify right side
72,326,762.24x = 3,921,379,702,457,007 - Step 5: Solve for x
x = 3,921,379,702,457,007/72,326,762.24 - Step 6: Final answer
x = 54,217,547.99
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.