Finding the Fourth Proportional to 1,711,043,323.20, 2,566,564,984.80 and 418,578,811.20
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Solution
The fourth proportional to 1,711,043,323.20, 2,566,564,984.80 and 418,578,811.20 is: 627,868,216.80
Step by Step Solution
- Step 1: Write the proportion equation
1,711,043,323.20 : 2,566,564,984.80 = 418,578,811.20 : x - Step 2: Convert to fraction form
1,711,043,323.20/2,566,564,984.80 = 418,578,811.20/x - Step 3: Cross multiply
1,711,043,323.20x = 2,566,564,984.80 × 418,578,811.20 - Step 4: Simplify right side
1,711,043,323.20x = 1,074,309,720,205,130,112 - Step 5: Solve for x
x = 1,074,309,720,205,130,112/1,711,043,323.20 - Step 6: Final answer
x = 627,868,216.80
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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.