Finding the Fourth Proportional to 517,928,232.51, 714,732,619.64 and 282,973,848.03
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Solution
The fourth proportional to 517,928,232.51, 714,732,619.64 and 282,973,848.03 is: 390,499,352.99
Step by Step Solution
- Step 1: Write the proportion equation
517,928,232.51 : 714,732,619.64 = 282,973,848.03 : x - Step 2: Convert to fraction form
517,928,232.51/714,732,619.64 = 282,973,848.03/x - Step 3: Cross multiply
517,928,232.51x = 714,732,619.64 × 282,973,848.03 - Step 4: Simplify right side
517,928,232.51x = 202,250,639,690,678,272 - Step 5: Solve for x
x = 202,250,639,690,678,272/517,928,232.51 - Step 6: Final answer
x = 390,499,352.99
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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.