Finding the Fourth Proportional to 1,347,688,787.54, 2,021,574,364.08 and 462,361,728.14
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Solution
The fourth proportional to 1,347,688,787.54, 2,021,574,364.08 and 462,361,728.14 is: 693,556,721.09
Step by Step Solution
- Step 1: Write the proportion equation
1,347,688,787.54 : 2,021,574,364.08 = 462,361,728.14 : x - Step 2: Convert to fraction form
1,347,688,787.54/2,021,574,364.08 = 462,361,728.14/x - Step 3: Cross multiply
1,347,688,787.54x = 2,021,574,364.08 × 462,361,728.14 - Step 4: Simplify right side
1,347,688,787.54x = 934,698,616,529,442,432 - Step 5: Solve for x
x = 934,698,616,529,442,432/1,347,688,787.54 - Step 6: Final answer
x = 693,556,721.09
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.