Finding the Fourth Proportional to 1,034,302,755.36, 1,550,545,740.48 and 421,402,478.88
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Solution
The fourth proportional to 1,034,302,755.36, 1,550,545,740.48 and 421,402,478.88 is: 631,733,615.01
Step by Step Solution
- Step 1: Write the proportion equation
1,034,302,755.36 : 1,550,545,740.48 = 421,402,478.88 : x - Step 2: Convert to fraction form
1,034,302,755.36/1,550,545,740.48 = 421,402,478.88/x - Step 3: Cross multiply
1,034,302,755.36x = 1,550,545,740.48 × 421,402,478.88 - Step 4: Simplify right side
1,034,302,755.36x = 653,403,818,655,097,216 - Step 5: Solve for x
x = 653,403,818,655,097,216/1,034,302,755.36 - Step 6: Final answer
x = 631,733,615.01
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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.