Finding the Fourth Proportional to 260,260,177.92, 390,454,881.79 and 129,163,981.25
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Solution
The fourth proportional to 260,260,177.92, 390,454,881.79 and 129,163,981.25 is: 193,778,039.48
Step by Step Solution
- Step 1: Write the proportion equation
260,260,177.92 : 390,454,881.79 = 129,163,981.25 : x - Step 2: Convert to fraction form
260,260,177.92/390,454,881.79 = 129,163,981.25/x - Step 3: Cross multiply
260,260,177.92x = 390,454,881.79 × 129,163,981.25 - Step 4: Simplify right side
260,260,177.92x = 50,432,707,031,390,584 - Step 5: Solve for x
x = 50,432,707,031,390,584/260,260,177.92 - Step 6: Final answer
x = 193,778,039.48
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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.