Finding the Fourth Proportional to 746,499,863.20, 1,119,749,794.80 and 692,080,304.80
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Solution
The fourth proportional to 746,499,863.20, 1,119,749,794.80 and 692,080,304.80 is: 1,038,120,457.20
Step by Step Solution
- Step 1: Write the proportion equation
746,499,863.20 : 1,119,749,794.80 = 692,080,304.80 : x - Step 2: Convert to fraction form
746,499,863.20/1,119,749,794.80 = 692,080,304.80/x - Step 3: Cross multiply
746,499,863.20x = 1,119,749,794.80 × 692,080,304.80 - Step 4: Simplify right side
746,499,863.20x = 774,956,779,284,921,344 - Step 5: Solve for x
x = 774,956,779,284,921,344/746,499,863.20 - Step 6: Final answer
x = 1,038,120,457.20
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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.