Finding the Fourth Proportional to 1,768,129,555.03, 2,652,194,335.13 and 718,621,869.81
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Solution
The fourth proportional to 1,768,129,555.03, 2,652,194,335.13 and 718,621,869.81 is: 1,077,932,805.77
Step by Step Solution
- Step 1: Write the proportion equation
1,768,129,555.03 : 2,652,194,335.13 = 718,621,869.81 : x - Step 2: Convert to fraction form
1,768,129,555.03/2,652,194,335.13 = 718,621,869.81/x - Step 3: Cross multiply
1,768,129,555.03x = 2,652,194,335.13 × 718,621,869.81 - Step 4: Simplify right side
1,768,129,555.03x = 1,905,924,852,221,131,008 - Step 5: Solve for x
x = 1,905,924,852,221,131,008/1,768,129,555.03 - Step 6: Final answer
x = 1,077,932,805.77
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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.