Finding the Fourth Proportional to 201,442,904.90, 302,164,357.35 and 140,220,901.70
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Solution
The fourth proportional to 201,442,904.90, 302,164,357.35 and 140,220,901.70 is: 210,331,352.55
Step by Step Solution
- Step 1: Write the proportion equation
201,442,904.90 : 302,164,357.35 = 140,220,901.70 : x - Step 2: Convert to fraction form
201,442,904.90/302,164,357.35 = 140,220,901.70/x - Step 3: Cross multiply
201,442,904.90x = 302,164,357.35 × 140,220,901.70 - Step 4: Simplify right side
201,442,904.90x = 42,369,758,649,218,024 - Step 5: Solve for x
x = 42,369,758,649,218,024/201,442,904.90 - Step 6: Final answer
x = 210,331,352.55
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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.