Finding the Fourth Proportional to 467,867,690.12, 645,657,569.76 and 256,187,909.12
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Solution
The fourth proportional to 467,867,690.12, 645,657,569.76 and 256,187,909.12 is: 353,539,400.77
Step by Step Solution
- Step 1: Write the proportion equation
467,867,690.12 : 645,657,569.76 = 256,187,909.12 : x - Step 2: Convert to fraction form
467,867,690.12/645,657,569.76 = 256,187,909.12/x - Step 3: Cross multiply
467,867,690.12x = 645,657,569.76 × 256,187,909.12 - Step 4: Simplify right side
467,867,690.12x = 165,409,662,804,314,944 - Step 5: Solve for x
x = 165,409,662,804,314,944/467,867,690.12 - Step 6: Final answer
x = 353,539,400.77
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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.