Finding the Fourth Proportional to 1,211,133,464.80, 1,817,550,502.80 and 521,535,623.20
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Solution
The fourth proportional to 1,211,133,464.80, 1,817,550,502.80 and 521,535,623.20 is: 782,669,591.52
Step by Step Solution
- Step 1: Write the proportion equation
1,211,133,464.80 : 1,817,550,502.80 = 521,535,623.20 : x - Step 2: Convert to fraction form
1,211,133,464.80/1,817,550,502.80 = 521,535,623.20/x - Step 3: Cross multiply
1,211,133,464.80x = 1,817,550,502.80 × 521,535,623.20 - Step 4: Simplify right side
1,211,133,464.80x = 947,917,334,175,271,296 - Step 5: Solve for x
x = 947,917,334,175,271,296/1,211,133,464.80 - Step 6: Final answer
x = 782,669,591.52
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.