Finding the Fourth Proportional to 7,113,889,570.36, 9,817,226,095.36 and 3,942,126,455.44
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Solution
The fourth proportional to 7,113,889,570.36, 9,817,226,095.36 and 3,942,126,455.44 is: 5,440,166,919.49
Step by Step Solution
- Step 1: Write the proportion equation
7,113,889,570.36 : 9,817,226,095.36 = 3,942,126,455.44 : x - Step 2: Convert to fraction form
7,113,889,570.36/9,817,226,095.36 = 3,942,126,455.44/x - Step 3: Cross multiply
7,113,889,570.36x = 9,817,226,095.36 × 3,942,126,455.44 - Step 4: Simplify right side
7,113,889,570.36x = 38,700,746,709,554,593,792 - Step 5: Solve for x
x = 38,700,746,709,554,593,792/7,113,889,570.36 - Step 6: Final answer
x = 5,440,166,919.49
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1.5x scale
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.