Finding the Fourth Proportional to 687,483,903.67, 1,031,299,652.81 and 294,051,590.62
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Solution
The fourth proportional to 687,483,903.67, 1,031,299,652.81 and 294,051,590.62 is: 441,108,950.62
Step by Step Solution
- Step 1: Write the proportion equation
687,483,903.67 : 1,031,299,652.81 = 294,051,590.62 : x - Step 2: Convert to fraction form
687,483,903.67/1,031,299,652.81 = 294,051,590.62/x - Step 3: Cross multiply
687,483,903.67x = 1,031,299,652.81 × 294,051,590.62 - Step 4: Simplify right side
687,483,903.67x = 303,255,303,314,634,240 - Step 5: Solve for x
x = 303,255,303,314,634,240/687,483,903.67 - Step 6: Final answer
x = 441,108,950.62
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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.