Finding the Fourth Proportional to 516,163,374.68, 712,390,883.51 and 304,521,947.55
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Solution
The fourth proportional to 516,163,374.68, 712,390,883.51 and 304,521,947.55 is: 420,290,686.84
Step by Step Solution
- Step 1: Write the proportion equation
516,163,374.68 : 712,390,883.51 = 304,521,947.55 : x - Step 2: Convert to fraction form
516,163,374.68/712,390,883.51 = 304,521,947.55/x - Step 3: Cross multiply
516,163,374.68x = 712,390,883.51 × 304,521,947.55 - Step 4: Simplify right side
516,163,374.68x = 216,938,659,264,091,712 - Step 5: Solve for x
x = 216,938,659,264,091,712/516,163,374.68 - Step 6: Final answer
x = 420,290,686.84
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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.