Finding the Fourth Proportional to 1,382,628,706.13, 1,908,175,479.05 and 847,135,746.66
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Solution
The fourth proportional to 1,382,628,706.13, 1,908,175,479.05 and 847,135,746.66 is: 1,169,137,926.93
Step by Step Solution
- Step 1: Write the proportion equation
1,382,628,706.13 : 1,908,175,479.05 = 847,135,746.66 : x - Step 2: Convert to fraction form
1,382,628,706.13/1,908,175,479.05 = 847,135,746.66/x - Step 3: Cross multiply
1,382,628,706.13x = 1,908,175,479.05 × 847,135,746.66 - Step 4: Simplify right side
1,382,628,706.13x = 1,616,483,659,199,089,152 - Step 5: Solve for x
x = 1,616,483,659,199,089,152/1,382,628,706.13 - Step 6: Final answer
x = 1,169,137,926.93
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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.