Finding the Fourth Proportional to 1,154,348,952.18, 1,593,021,965.52 and 625,730,493.30
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Solution
The fourth proportional to 1,154,348,952.18, 1,593,021,965.52 and 625,730,493.30 is: 863,519,145.09
Step by Step Solution
- Step 1: Write the proportion equation
1,154,348,952.18 : 1,593,021,965.52 = 625,730,493.30 : x - Step 2: Convert to fraction form
1,154,348,952.18/1,593,021,965.52 = 625,730,493.30/x - Step 3: Cross multiply
1,154,348,952.18x = 1,593,021,965.52 × 625,730,493.30 - Step 4: Simplify right side
1,154,348,952.18x = 996,802,420,322,565,120 - Step 5: Solve for x
x = 996,802,420,322,565,120/1,154,348,952.18 - Step 6: Final answer
x = 863,519,145.09
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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.