Finding the Fourth Proportional to 1,651,781,960, 2,279,519,252.76 and 899,058,780.05
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Solution
The fourth proportional to 1,651,781,960, 2,279,519,252.76 and 899,058,780.05 is: 1,240,733,854.78
Step by Step Solution
- Step 1: Write the proportion equation
1,651,781,960 : 2,279,519,252.76 = 899,058,780.05 : x - Step 2: Convert to fraction form
1,651,781,960/2,279,519,252.76 = 899,058,780.05/x - Step 3: Cross multiply
1,651,781,960x = 2,279,519,252.76 × 899,058,780.05 - Step 4: Simplify right side
1,651,781,960x = 2,049,421,798,486,893,312 - Step 5: Solve for x
x = 2,049,421,798,486,893,312/1,651,781,960 - Step 6: Final answer
x = 1,240,733,854.78
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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.