Finding the Fourth Proportional to 1,680,474,422.66, 2,319,258,058.23 and 956,438,387.16
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Solution
The fourth proportional to 1,680,474,422.66, 2,319,258,058.23 and 956,438,387.16 is: 1,320,000,713.32
Step by Step Solution
- Step 1: Write the proportion equation
1,680,474,422.66 : 2,319,258,058.23 = 956,438,387.16 : x - Step 2: Convert to fraction form
1,680,474,422.66/2,319,258,058.23 = 956,438,387.16/x - Step 3: Cross multiply
1,680,474,422.66x = 2,319,258,058.23 × 956,438,387.16 - Step 4: Simplify right side
1,680,474,422.66x = 2,218,227,436,621,334,528 - Step 5: Solve for x
x = 2,218,227,436,621,334,528/1,680,474,422.66 - Step 6: Final answer
x = 1,320,000,713.32
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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.