Finding the Fourth Proportional to 1,239,847,481,673.90, 1,710,989,510,811.30 and 669,564,521,865.84
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Solution
The fourth proportional to 1,239,847,481,673.90, 1,710,989,510,811.30 and 669,564,521,865.84 is: 923,999,032,669.05
Step by Step Solution
- Step 1: Write the proportion equation
1,239,847,481,673.90 : 1,710,989,510,811.30 = 669,564,521,865.84 : x - Step 2: Convert to fraction form
1,239,847,481,673.90/1,710,989,510,811.30 = 669,564,521,865.84/x - Step 3: Cross multiply
1,239,847,481,673.90x = 1,710,989,510,811.30 × 669,564,521,865.84 - Step 4: Simplify right side
1,239,847,481,673.90x = 1,145,617,873,723,835,493,122,048 - Step 5: Solve for x
x = 1,145,617,873,723,835,493,122,048/1,239,847,481,673.90 - Step 6: Final answer
x = 923,999,032,669.05
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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.