Finding the Fourth Proportional to 7,838,988,117.80, 11,758,482,176.70 and 2,669,130,069.80
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Solution
The fourth proportional to 7,838,988,117.80, 11,758,482,176.70 and 2,669,130,069.80 is: 4,003,695,104.70
Step by Step Solution
- Step 1: Write the proportion equation
7,838,988,117.80 : 11,758,482,176.70 = 2,669,130,069.80 : x - Step 2: Convert to fraction form
7,838,988,117.80/11,758,482,176.70 = 2,669,130,069.80/x - Step 3: Cross multiply
7,838,988,117.80x = 11,758,482,176.70 × 2,669,130,069.80 - Step 4: Simplify right side
7,838,988,117.80x = 31,384,918,353,037,332,480 - Step 5: Solve for x
x = 31,384,918,353,037,332,480/7,838,988,117.80 - Step 6: Final answer
x = 4,003,695,104.70
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1.5x scale
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.