Finding the Fourth Proportional to 249,290,412.13, 373,943,236.14 and 85,525,871.53
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Solution
The fourth proportional to 249,290,412.13, 373,943,236.14 and 85,525,871.53 is: 128,291,420.84
Step by Step Solution
- Step 1: Write the proportion equation
249,290,412.13 : 373,943,236.14 = 85,525,871.53 : x - Step 2: Convert to fraction form
249,290,412.13/373,943,236.14 = 85,525,871.53/x - Step 3: Cross multiply
249,290,412.13x = 373,943,236.14 × 85,525,871.53 - Step 4: Simplify right side
249,290,412.13x = 31,981,821,174,199,840 - Step 5: Solve for x
x = 31,981,821,174,199,840/249,290,412.13 - Step 6: Final answer
x = 128,291,420.84
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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.