Finding the Fourth Proportional to 1,190,263,962.32, 1,785,414,316.44 and 453,374,959.76
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Solution
The fourth proportional to 1,190,263,962.32, 1,785,414,316.44 and 453,374,959.76 is: 680,069,437.95
Step by Step Solution
- Step 1: Write the proportion equation
1,190,263,962.32 : 1,785,414,316.44 = 453,374,959.76 : x - Step 2: Convert to fraction form
1,190,263,962.32/1,785,414,316.44 = 453,374,959.76/x - Step 3: Cross multiply
1,190,263,962.32x = 1,785,414,316.44 × 453,374,959.76 - Step 4: Simplify right side
1,190,263,962.32x = 809,462,143,870,912,896 - Step 5: Solve for x
x = 809,462,143,870,912,896/1,190,263,962.32 - Step 6: Final answer
x = 680,069,437.95
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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.