Finding the Fourth Proportional to 1,256,658,390,407.70, 1,734,193,874,948.20 and 707,956,279,106.56
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Solution
The fourth proportional to 1,256,658,390,407.70, 1,734,193,874,948.20 and 707,956,279,106.56 is: 976,982,648,848.11
Step by Step Solution
- Step 1: Write the proportion equation
1,256,658,390,407.70 : 1,734,193,874,948.20 = 707,956,279,106.56 : x - Step 2: Convert to fraction form
1,256,658,390,407.70/1,734,193,874,948.20 = 707,956,279,106.56/x - Step 3: Cross multiply
1,256,658,390,407.70x = 1,734,193,874,948.20 × 707,956,279,106.56 - Step 4: Simplify right side
1,256,658,390,407.70x = 1,227,733,442,957,714,877,579,264 - Step 5: Solve for x
x = 1,227,733,442,957,714,877,579,264/1,256,658,390,407.70 - Step 6: Final answer
x = 976,982,648,848.11
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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.