Finding the Fourth Proportional to 3,965,596,756.88, 5,947,133,133.12 and 1,309,158,223.84
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Solution
The fourth proportional to 3,965,596,756.88, 5,947,133,133.12 and 1,309,158,223.84 is: 1,963,320,712.32
Step by Step Solution
- Step 1: Write the proportion equation
3,965,596,756.88 : 5,947,133,133.12 = 1,309,158,223.84 : x - Step 2: Convert to fraction form
3,965,596,756.88/5,947,133,133.12 = 1,309,158,223.84/x - Step 3: Cross multiply
3,965,596,756.88x = 5,947,133,133.12 × 1,309,158,223.84 - Step 4: Simplify right side
3,965,596,756.88x = 7,785,738,249,495,393,280 - Step 5: Solve for x
x = 7,785,738,249,495,393,280/3,965,596,756.88 - Step 6: Final answer
x = 1,963,320,712.32
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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.