Finding the Fourth Proportional to 756,219,986.42, 1,043,657,976.35 and 458,838,888.84
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Solution
The fourth proportional to 756,219,986.42, 1,043,657,976.35 and 458,838,888.84 is: 633,242,806.06
Step by Step Solution
- Step 1: Write the proportion equation
756,219,986.42 : 1,043,657,976.35 = 458,838,888.84 : x - Step 2: Convert to fraction form
756,219,986.42/1,043,657,976.35 = 458,838,888.84/x - Step 3: Cross multiply
756,219,986.42x = 1,043,657,976.35 × 458,838,888.84 - Step 4: Simplify right side
756,219,986.42x = 478,870,866,197,299,328 - Step 5: Solve for x
x = 478,870,866,197,299,328/756,219,986.42 - Step 6: Final answer
x = 633,242,806.06
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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.