Finding the Fourth Proportional to 465,249,987.96, 642,016,135.98 and 256,394,462.28
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Solution
The fourth proportional to 465,249,987.96, 642,016,135.98 and 256,394,462.28 is: 353,808,460.44
Step by Step Solution
- Step 1: Write the proportion equation
465,249,987.96 : 642,016,135.98 = 256,394,462.28 : x - Step 2: Convert to fraction form
465,249,987.96/642,016,135.98 = 256,394,462.28/x - Step 3: Cross multiply
465,249,987.96x = 642,016,135.98 × 256,394,462.28 - Step 4: Simplify right side
465,249,987.96x = 164,609,381,959,675,456 - Step 5: Solve for x
x = 164,609,381,959,675,456/465,249,987.96 - Step 6: Final answer
x = 353,808,460.44
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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.