Finding the Fourth Proportional to 99,683,642.58, 149,541,273.45 and 42,176,341.50
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Solution
The fourth proportional to 99,683,642.58, 149,541,273.45 and 42,176,341.50 is: 63,271,201.31
Step by Step Solution
- Step 1: Write the proportion equation
99,683,642.58 : 149,541,273.45 = 42,176,341.50 : x - Step 2: Convert to fraction form
99,683,642.58/149,541,273.45 = 42,176,341.50/x - Step 3: Cross multiply
99,683,642.58x = 149,541,273.45 × 42,176,341.50 - Step 4: Simplify right side
99,683,642.58x = 6,307,103,817,372,083 - Step 5: Solve for x
x = 6,307,103,817,372,083/99,683,642.58 - Step 6: Final answer
x = 63,271,201.31
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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.