Finding the Fourth Proportional to 85,667,646.24, 118,107,169.44 and 68,085,259.74
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Solution
The fourth proportional to 85,667,646.24, 118,107,169.44 and 68,085,259.74 is: 93,866,910.80
Step by Step Solution
- Step 1: Write the proportion equation
85,667,646.24 : 118,107,169.44 = 68,085,259.74 : x - Step 2: Convert to fraction form
85,667,646.24/118,107,169.44 = 68,085,259.74/x - Step 3: Cross multiply
85,667,646.24x = 118,107,169.44 × 68,085,259.74 - Step 4: Simplify right side
85,667,646.24x = 8,041,357,308,478,590 - Step 5: Solve for x
x = 8,041,357,308,478,590/85,667,646.24 - Step 6: Final answer
x = 93,866,910.80
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.