Finding the Fourth Proportional to 10,988,973,415.40, 15,168,727,868.10 and 6,533,627,163.08
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Solution
The fourth proportional to 10,988,973,415.40, 15,168,727,868.10 and 6,533,627,163.08 is: 9,018,750,767.88
Step by Step Solution
- Step 1: Write the proportion equation
10,988,973,415.40 : 15,168,727,868.10 = 6,533,627,163.08 : x - Step 2: Convert to fraction form
10,988,973,415.40/15,168,727,868.10 = 6,533,627,163.08/x - Step 3: Cross multiply
10,988,973,415.40x = 15,168,727,868.10 × 6,533,627,163.08 - Step 4: Simplify right side
10,988,973,415.40x = 99,106,812,428,386,746,368 - Step 5: Solve for x
x = 99,106,812,428,386,746,368/10,988,973,415.40 - Step 6: Final answer
x = 9,018,750,767.88
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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.