Finding the Fourth Proportional to 434,390,479.80, 651,585,719.70 and 414,235,087.80
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Solution
The fourth proportional to 434,390,479.80, 651,585,719.70 and 414,235,087.80 is: 621,352,631.70
Step by Step Solution
- Step 1: Write the proportion equation
434,390,479.80 : 651,585,719.70 = 414,235,087.80 : x - Step 2: Convert to fraction form
434,390,479.80/651,585,719.70 = 414,235,087.80/x - Step 3: Cross multiply
434,390,479.80x = 651,585,719.70 × 414,235,087.80 - Step 4: Simplify right side
434,390,479.80x = 269,909,667,809,155,712 - Step 5: Solve for x
x = 269,909,667,809,155,712/434,390,479.80 - Step 6: Final answer
x = 621,352,631.70
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1.5x scale
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.