Finding the Fourth Proportional to 65,221,998.16, 90,006,649.68 and 35,855,219.68
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Solution
The fourth proportional to 65,221,998.16, 90,006,649.68 and 35,855,219.68 is: 49,480,363.80
Step by Step Solution
- Step 1: Write the proportion equation
65,221,998.16 : 90,006,649.68 = 35,855,219.68 : x - Step 2: Convert to fraction form
65,221,998.16/90,006,649.68 = 35,855,219.68/x - Step 3: Cross multiply
65,221,998.16x = 90,006,649.68 × 35,855,219.68 - Step 4: Simplify right side
65,221,998.16x = 3,227,208,196,937,202 - Step 5: Solve for x
x = 3,227,208,196,937,202/65,221,998.16 - Step 6: Final answer
x = 49,480,363.80
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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.