Finding the Fourth Proportional to 870,621,672.08, 1,201,508,446.20 and 655,655,566.88
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Solution
The fourth proportional to 870,621,672.08, 1,201,508,446.20 and 655,655,566.88 is: 904,842,742.45
Step by Step Solution
- Step 1: Write the proportion equation
870,621,672.08 : 1,201,508,446.20 = 655,655,566.88 : x - Step 2: Convert to fraction form
870,621,672.08/1,201,508,446.20 = 655,655,566.88/x - Step 3: Cross multiply
870,621,672.08x = 1,201,508,446.20 × 655,655,566.88 - Step 4: Simplify right side
870,621,672.08x = 787,775,701,404,369,024 - Step 5: Solve for x
x = 787,775,701,404,369,024/870,621,672.08 - Step 6: Final answer
x = 904,842,742.45
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.