Finding the Fourth Proportional to 80,762,434.30, 121,143,651.45 and 48,513,807.10
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Solution
The fourth proportional to 80,762,434.30, 121,143,651.45 and 48,513,807.10 is: 72,770,710.65
Step by Step Solution
- Step 1: Write the proportion equation
80,762,434.30 : 121,143,651.45 = 48,513,807.10 : x - Step 2: Convert to fraction form
80,762,434.30/121,143,651.45 = 48,513,807.10/x - Step 3: Cross multiply
80,762,434.30x = 121,143,651.45 × 48,513,807.10 - Step 4: Simplify right side
80,762,434.30x = 5,877,139,737,834,936 - Step 5: Solve for x
x = 5,877,139,737,834,936/80,762,434.30 - Step 6: Final answer
x = 72,770,710.65
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1.5x scale
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.