Finding the Fourth Proportional to 78,699,675.30, 118,049,512.95 and 62,260,433.70
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Solution
The fourth proportional to 78,699,675.30, 118,049,512.95 and 62,260,433.70 is: 93,390,650.55
Step by Step Solution
- Step 1: Write the proportion equation
78,699,675.30 : 118,049,512.95 = 62,260,433.70 : x - Step 2: Convert to fraction form
78,699,675.30/118,049,512.95 = 62,260,433.70/x - Step 3: Cross multiply
78,699,675.30x = 118,049,512.95 × 62,260,433.70 - Step 4: Simplify right side
78,699,675.30x = 7,349,813,874,340,767 - Step 5: Solve for x
x = 7,349,813,874,340,767/78,699,675.30 - Step 6: Final answer
x = 93,390,650.55
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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.