Finding the Fourth Proportional to 122,485,908.20, 183,728,862.30 and 100,962,547.70
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Solution
The fourth proportional to 122,485,908.20, 183,728,862.30 and 100,962,547.70 is: 151,443,821.55
Step by Step Solution
- Step 1: Write the proportion equation
122,485,908.20 : 183,728,862.30 = 100,962,547.70 : x - Step 2: Convert to fraction form
122,485,908.20/183,728,862.30 = 100,962,547.70/x - Step 3: Cross multiply
122,485,908.20x = 183,728,862.30 × 100,962,547.70 - Step 4: Simplify right side
122,485,908.20x = 18,549,734,023,830,484 - Step 5: Solve for x
x = 18,549,734,023,830,484/122,485,908.20 - Step 6: Final answer
x = 151,443,821.55
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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.