Finding the Fourth Proportional to 400,015,739,482.05, 552,022,129,031.10 and 217,112,878,834.99
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Solution
The fourth proportional to 400,015,739,482.05, 552,022,129,031.10 and 217,112,878,834.99 is: 299,615,994,534.99
Step by Step Solution
- Step 1: Write the proportion equation
400,015,739,482.05 : 552,022,129,031.10 = 217,112,878,834.99 : x - Step 2: Convert to fraction form
400,015,739,482.05/552,022,129,031.10 = 217,112,878,834.99/x - Step 3: Cross multiply
400,015,739,482.05x = 552,022,129,031.10 × 217,112,878,834.99 - Step 4: Simplify right side
400,015,739,482.05x = 119,851,113,614,562,417,442,816 - Step 5: Solve for x
x = 119,851,113,614,562,417,442,816/400,015,739,482.05 - Step 6: Final answer
x = 299,615,994,534.99
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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.