Finding the Fourth Proportional to 70,136,749.47, 96,791,703.42 and 39,196,917.84
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Solution
The fourth proportional to 70,136,749.47, 96,791,703.42 and 39,196,917.84 is: 54,093,417.15
Step by Step Solution
- Step 1: Write the proportion equation
70,136,749.47 : 96,791,703.42 = 39,196,917.84 : x - Step 2: Convert to fraction form
70,136,749.47/96,791,703.42 = 39,196,917.84/x - Step 3: Cross multiply
70,136,749.47x = 96,791,703.42 × 39,196,917.84 - Step 4: Simplify right side
70,136,749.47x = 3,793,936,446,547,387.50 - Step 5: Solve for x
x = 3,793,936,446,547,387.50/70,136,749.47 - Step 6: Final answer
x = 54,093,417.15
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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.