Finding the Fourth Proportional to 201,855,885.30, 302,925,545.55 and 86,922,911.70
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Solution
The fourth proportional to 201,855,885.30, 302,925,545.55 and 86,922,911.70 is: 130,445,393.79
Step by Step Solution
- Step 1: Write the proportion equation
201,855,885.30 : 302,925,545.55 = 86,922,911.70 : x - Step 2: Convert to fraction form
201,855,885.30/302,925,545.55 = 86,922,911.70/x - Step 3: Cross multiply
201,855,885.30x = 302,925,545.55 × 86,922,911.70 - Step 4: Simplify right side
201,855,885.30x = 26,331,170,447,516,980 - Step 5: Solve for x
x = 26,331,170,447,516,980/201,855,885.30 - Step 6: Final answer
x = 130,445,393.79
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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.