Finding the Fourth Proportional to 2,778,173,370.78, 3,833,882,931.66 and 1,508,013,529.80
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Solution
The fourth proportional to 2,778,173,370.78, 3,833,882,931.66 and 1,508,013,529.80 is: 2,081,060,668.65
Step by Step Solution
- Step 1: Write the proportion equation
2,778,173,370.78 : 3,833,882,931.66 = 1,508,013,529.80 : x - Step 2: Convert to fraction form
2,778,173,370.78/3,833,882,931.66 = 1,508,013,529.80/x - Step 3: Cross multiply
2,778,173,370.78x = 3,833,882,931.66 × 1,508,013,529.80 - Step 4: Simplify right side
2,778,173,370.78x = 5,781,547,332,612,568,064 - Step 5: Solve for x
x = 5,781,547,332,612,568,064/2,778,173,370.78 - Step 6: Final answer
x = 2,081,060,668.65
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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.