Finding the Fourth Proportional to 3,759,734,923.88, 5,639,789,711.93 and 1,430,852,402.21
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Solution
The fourth proportional to 3,759,734,923.88, 5,639,789,711.93 and 1,430,852,402.21 is: 2,146,349,894.51
Step by Step Solution
- Step 1: Write the proportion equation
3,759,734,923.88 : 5,639,789,711.93 = 1,430,852,402.21 : x - Step 2: Convert to fraction form
3,759,734,923.88/5,639,789,711.93 = 1,430,852,402.21/x - Step 3: Cross multiply
3,759,734,923.88x = 5,639,789,711.93 × 1,430,852,402.21 - Step 4: Simplify right side
3,759,734,923.88x = 8,069,706,657,238,931,456 - Step 5: Solve for x
x = 8,069,706,657,238,931,456/3,759,734,923.88 - Step 6: Final answer
x = 2,146,349,894.51
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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.