Finding the Fourth Proportional to 249,939,652.42, 344,890,462.17 and 138,427,571.98
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Solution
The fourth proportional to 249,939,652.42, 344,890,462.17 and 138,427,571.98 is: 191,015,506.40
Step by Step Solution
- Step 1: Write the proportion equation
249,939,652.42 : 344,890,462.17 = 138,427,571.98 : x - Step 2: Convert to fraction form
249,939,652.42/344,890,462.17 = 138,427,571.98/x - Step 3: Cross multiply
249,939,652.42x = 344,890,462.17 × 138,427,571.98 - Step 4: Simplify right side
249,939,652.42x = 47,742,349,277,253,144 - Step 5: Solve for x
x = 47,742,349,277,253,144/249,939,652.42 - Step 6: Final answer
x = 191,015,506.40
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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.