Finding the Fourth Proportional to 1,029,807,515.40, 1,421,182,956.44 and 583,779,523.36
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Solution
The fourth proportional to 1,029,807,515.40, 1,421,182,956.44 and 583,779,523.36 is: 805,643,284.31
Step by Step Solution
- Step 1: Write the proportion equation
1,029,807,515.40 : 1,421,182,956.44 = 583,779,523.36 : x - Step 2: Convert to fraction form
1,029,807,515.40/1,421,182,956.44 = 583,779,523.36/x - Step 3: Cross multiply
1,029,807,515.40x = 1,421,182,956.44 × 583,779,523.36 - Step 4: Simplify right side
1,029,807,515.40x = 829,657,508,917,898,880 - Step 5: Solve for x
x = 829,657,508,917,898,880/1,029,807,515.40 - Step 6: Final answer
x = 805,643,284.31
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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.