Finding the Fourth Proportional to 128,579,925.74, 192,869,363.73 and 46,698,645.74
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Solution
The fourth proportional to 128,579,925.74, 192,869,363.73 and 46,698,645.74 is: 70,047,777.98
Step by Step Solution
- Step 1: Write the proportion equation
128,579,925.74 : 192,869,363.73 = 46,698,645.74 : x - Step 2: Convert to fraction form
128,579,925.74/192,869,363.73 = 46,698,645.74/x - Step 3: Cross multiply
128,579,925.74x = 192,869,363.73 × 46,698,645.74 - Step 4: Simplify right side
128,579,925.74x = 9,006,738,090,926,475 - Step 5: Solve for x
x = 9,006,738,090,926,475/128,579,925.74 - Step 6: Final answer
x = 70,047,777.98
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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.