Finding the Fourth Proportional to 12,963,946.36, 17,890,606.88 and 7,163,101.94
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Solution
The fourth proportional to 12,963,946.36, 17,890,606.88 and 7,163,101.94 is: 9,885,280.09
Step by Step Solution
- Step 1: Write the proportion equation
12,963,946.36 : 17,890,606.88 = 7,163,101.94 : x - Step 2: Convert to fraction form
12,963,946.36/17,890,606.88 = 7,163,101.94/x - Step 3: Cross multiply
12,963,946.36x = 17,890,606.88 × 7,163,101.94 - Step 4: Simplify right side
12,963,946.36x = 128,152,240,849,905.34 - Step 5: Solve for x
x = 128,152,240,849,905.34/12,963,946.36 - Step 6: Final answer
x = 9,885,280.09
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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.