Finding the Fourth Proportional to 1,062,912,409.80, 1,594,368,614.70 and 286,636,541.10
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Solution
The fourth proportional to 1,062,912,409.80, 1,594,368,614.70 and 286,636,541.10 is: 429,954,811.65
Step by Step Solution
- Step 1: Write the proportion equation
1,062,912,409.80 : 1,594,368,614.70 = 286,636,541.10 : x - Step 2: Convert to fraction form
1,062,912,409.80/1,594,368,614.70 = 286,636,541.10/x - Step 3: Cross multiply
1,062,912,409.80x = 1,594,368,614.70 × 286,636,541.10 - Step 4: Simplify right side
1,062,912,409.80x = 457,004,304,956,006,656 - Step 5: Solve for x
x = 457,004,304,956,006,656/1,062,912,409.80 - Step 6: Final answer
x = 429,954,811.65
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Double scale
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Similar ratio
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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.