Finding the Fourth Proportional to 1,013,975,803.80, 1,518,344,259.66 and 699,811,246.62
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Solution
The fourth proportional to 1,013,975,803.80, 1,518,344,259.66 and 699,811,246.62 is: 1,047,909,018.31
Step by Step Solution
- Step 1: Write the proportion equation
1,013,975,803.80 : 1,518,344,259.66 = 699,811,246.62 : x - Step 2: Convert to fraction form
1,013,975,803.80/1,518,344,259.66 = 699,811,246.62/x - Step 3: Cross multiply
1,013,975,803.80x = 1,518,344,259.66 × 699,811,246.62 - Step 4: Simplify right side
1,013,975,803.80x = 1,062,554,389,150,985,600 - Step 5: Solve for x
x = 1,062,554,389,150,985,600/1,013,975,803.80 - Step 6: Final answer
x = 1,047,909,018.31
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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.