Finding the Fourth Proportional to 361,758,751.20, 542,641,407.12 and 102,973,869.68
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Solution
The fourth proportional to 361,758,751.20, 542,641,407.12 and 102,973,869.68 is: 154,461,738.26
Step by Step Solution
- Step 1: Write the proportion equation
361,758,751.20 : 542,641,407.12 = 102,973,869.68 : x - Step 2: Convert to fraction form
361,758,751.20/542,641,407.12 = 102,973,869.68/x - Step 3: Cross multiply
361,758,751.20x = 542,641,407.12 × 102,973,869.68 - Step 4: Simplify right side
361,758,751.20x = 55,877,885,539,746,712 - Step 5: Solve for x
x = 55,877,885,539,746,712/361,758,751.20 - Step 6: Final answer
x = 154,461,738.26
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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.