Finding the Fourth Proportional to 729,417,077.70, 1,094,125,616.55 and 218,813,813.70
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Solution
The fourth proportional to 729,417,077.70, 1,094,125,616.55 and 218,813,813.70 is: 328,220,720.55
Step by Step Solution
- Step 1: Write the proportion equation
729,417,077.70 : 1,094,125,616.55 = 218,813,813.70 : x - Step 2: Convert to fraction form
729,417,077.70/1,094,125,616.55 = 218,813,813.70/x - Step 3: Cross multiply
729,417,077.70x = 1,094,125,616.55 × 218,813,813.70 - Step 4: Simplify right side
729,417,077.70x = 239,409,798,824,169,312 - Step 5: Solve for x
x = 239,409,798,824,169,312/729,417,077.70 - Step 6: Final answer
x = 328,220,720.55
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1.5x scale
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.