Finding the Fourth Proportional to 770,312,064.06, 1,062,940,966.56 and 431,239,106.70
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Solution
The fourth proportional to 770,312,064.06, 1,062,940,966.56 and 431,239,106.70 is: 595,059,761.21
Step by Step Solution
- Step 1: Write the proportion equation
770,312,064.06 : 1,062,940,966.56 = 431,239,106.70 : x - Step 2: Convert to fraction form
770,312,064.06/1,062,940,966.56 = 431,239,106.70/x - Step 3: Cross multiply
770,312,064.06x = 1,062,940,966.56 × 431,239,106.70 - Step 4: Simplify right side
770,312,064.06x = 458,381,712,894,168,960 - Step 5: Solve for x
x = 458,381,712,894,168,960/770,312,064.06 - Step 6: Final answer
x = 595,059,761.21
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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.