Finding the Fourth Proportional to 55,655,148.30, 83,486,869.65 and 19,748,690.70
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Solution
The fourth proportional to 55,655,148.30, 83,486,869.65 and 19,748,690.70 is: 29,624,507.64
Step by Step Solution
- Step 1: Write the proportion equation
55,655,148.30 : 83,486,869.65 = 19,748,690.70 : x - Step 2: Convert to fraction form
55,655,148.30/83,486,869.65 = 19,748,690.70/x - Step 3: Cross multiply
55,655,148.30x = 83,486,869.65 × 19,748,690.70 - Step 4: Simplify right side
55,655,148.30x = 1,648,756,366,229,067.25 - Step 5: Solve for x
x = 1,648,756,366,229,067.25/55,655,148.30 - Step 6: Final answer
x = 29,624,507.64
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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.