Finding the Fourth Proportional to 450,167,157.86, 621,217,335.30 and 249,232,987.49
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Solution
The fourth proportional to 450,167,157.86, 621,217,335.30 and 249,232,987.49 is: 343,934,135.70
Step by Step Solution
- Step 1: Write the proportion equation
450,167,157.86 : 621,217,335.30 = 249,232,987.49 : x - Step 2: Convert to fraction form
450,167,157.86/621,217,335.30 = 249,232,987.49/x - Step 3: Cross multiply
450,167,157.86x = 621,217,335.30 × 249,232,987.49 - Step 4: Simplify right side
450,167,157.86x = 154,827,852,357,396,032 - Step 5: Solve for x
x = 154,827,852,357,396,032/450,167,157.86 - Step 6: Final answer
x = 343,934,135.70
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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.