Finding the Fourth Proportional to 1,110,481,497.79, 1,532,464,612.10 and 615,476,164.03
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Solution
The fourth proportional to 1,110,481,497.79, 1,532,464,612.10 and 615,476,164.03 is: 849,357,186.81
Step by Step Solution
- Step 1: Write the proportion equation
1,110,481,497.79 : 1,532,464,612.10 = 615,476,164.03 : x - Step 2: Convert to fraction form
1,110,481,497.79/1,532,464,612.10 = 615,476,164.03/x - Step 3: Cross multiply
1,110,481,497.79x = 1,532,464,612.10 × 615,476,164.03 - Step 4: Simplify right side
1,110,481,497.79x = 943,195,440,962,460,160 - Step 5: Solve for x
x = 943,195,440,962,460,160/1,110,481,497.79 - Step 6: Final answer
x = 849,357,186.81
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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.