Finding the Fourth Proportional to 1,866,312,325.05, 2,799,468,487.58 and 639,072,901.05
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Solution
The fourth proportional to 1,866,312,325.05, 2,799,468,487.58 and 639,072,901.05 is: 958,609,351.58
Step by Step Solution
- Step 1: Write the proportion equation
1,866,312,325.05 : 2,799,468,487.58 = 639,072,901.05 : x - Step 2: Convert to fraction form
1,866,312,325.05/2,799,468,487.58 = 639,072,901.05/x - Step 3: Cross multiply
1,866,312,325.05x = 2,799,468,487.58 × 639,072,901.05 - Step 4: Simplify right side
1,866,312,325.05x = 1,789,064,447,752,610,816 - Step 5: Solve for x
x = 1,789,064,447,752,610,816/1,866,312,325.05 - Step 6: Final answer
x = 958,609,351.58
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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.