Finding the Fourth Proportional to 216,843,862.78, 325,143,562.68 and 71,238,328.99
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Solution
The fourth proportional to 216,843,862.78, 325,143,562.68 and 71,238,328.99 is: 106,817,337.55
Step by Step Solution
- Step 1: Write the proportion equation
216,843,862.78 : 325,143,562.68 = 71,238,328.99 : x - Step 2: Convert to fraction form
216,843,862.78/325,143,562.68 = 71,238,328.99/x - Step 3: Cross multiply
216,843,862.78x = 325,143,562.68 × 71,238,328.99 - Step 4: Simplify right side
216,843,862.78x = 23,162,684,087,178,524 - Step 5: Solve for x
x = 23,162,684,087,178,524/216,843,862.78 - Step 6: Final answer
x = 106,817,337.55
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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.