Finding the Fourth Proportional to 7,700,718.98, 10,627,117.71 and 4,215,999.08
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Solution
The fourth proportional to 7,700,718.98, 10,627,117.71 and 4,215,999.08 is: 5,818,147.45
Step by Step Solution
- Step 1: Write the proportion equation
7,700,718.98 : 10,627,117.71 = 4,215,999.08 : x - Step 2: Convert to fraction form
7,700,718.98/10,627,117.71 = 4,215,999.08/x - Step 3: Cross multiply
7,700,718.98x = 10,627,117.71 × 4,215,999.08 - Step 4: Simplify right side
7,700,718.98x = 44,803,918,488,411.71 - Step 5: Solve for x
x = 44,803,918,488,411.71/7,700,718.98 - Step 6: Final answer
x = 5,818,147.45
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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.