Finding the Fourth Proportional to 7,243,344,195.20, 10,865,016,292.80 and 2,585,370,118.40
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Solution
The fourth proportional to 7,243,344,195.20, 10,865,016,292.80 and 2,585,370,118.40 is: 3,878,055,177.60
Step by Step Solution
- Step 1: Write the proportion equation
7,243,344,195.20 : 10,865,016,292.80 = 2,585,370,118.40 : x - Step 2: Convert to fraction form
7,243,344,195.20/10,865,016,292.80 = 2,585,370,118.40/x - Step 3: Cross multiply
7,243,344,195.20x = 10,865,016,292.80 × 2,585,370,118.40 - Step 4: Simplify right side
7,243,344,195.20x = 28,090,088,459,334,262,784 - Step 5: Solve for x
x = 28,090,088,459,334,262,784/7,243,344,195.20 - Step 6: Final answer
x = 3,878,055,177.60
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1.5x scale
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.