Finding the Fourth Proportional to 682,749,030.99, 942,196,631.63 and 369,483,272.49
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Solution
The fourth proportional to 682,749,030.99, 942,196,631.63 and 369,483,272.49 is: 509,888,522.69
Step by Step Solution
- Step 1: Write the proportion equation
682,749,030.99 : 942,196,631.63 = 369,483,272.49 : x - Step 2: Convert to fraction form
682,749,030.99/942,196,631.63 = 369,483,272.49/x - Step 3: Cross multiply
682,749,030.99x = 942,196,631.63 × 369,483,272.49 - Step 4: Simplify right side
682,749,030.99x = 348,125,894,781,860,032 - Step 5: Solve for x
x = 348,125,894,781,860,032/682,749,030.99 - Step 6: Final answer
x = 509,888,522.69
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.