Finding the Fourth Proportional to 539,023,135.38, 743,854,167.77 and 291,504,489.63
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Solution
The fourth proportional to 539,023,135.38, 743,854,167.77 and 291,504,489.63 is: 402,277,407.59
Step by Step Solution
- Step 1: Write the proportion equation
539,023,135.38 : 743,854,167.77 = 291,504,489.63 : x - Step 2: Convert to fraction form
539,023,135.38/743,854,167.77 = 291,504,489.63/x - Step 3: Cross multiply
539,023,135.38x = 743,854,167.77 × 291,504,489.63 - Step 4: Simplify right side
539,023,135.38x = 216,836,829,533,484,704 - Step 5: Solve for x
x = 216,836,829,533,484,704/539,023,135.38 - Step 6: Final answer
x = 402,277,407.59
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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.