Finding the Fourth Proportional to 249,986,836.20, 344,984,593.16 and 138,479,385
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Solution
The fourth proportional to 249,986,836.20, 344,984,593.16 and 138,479,385 is: 191,103,079.75
Step by Step Solution
- Step 1: Write the proportion equation
249,986,836.20 : 344,984,593.16 = 138,479,385 : x - Step 2: Convert to fraction form
249,986,836.20/344,984,593.16 = 138,479,385/x - Step 3: Cross multiply
249,986,836.20x = 344,984,593.16 × 138,479,385 - Step 4: Simplify right side
249,986,836.20x = 47,773,254,295,272,008 - Step 5: Solve for x
x = 47,773,254,295,272,008/249,986,836.20 - Step 6: Final answer
x = 191,103,079.75
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.