Finding the Fourth Proportional to 7,400,237.74, 10,212,281.28 and 4,137,036.90
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Solution
The fourth proportional to 7,400,237.74, 10,212,281.28 and 4,137,036.90 is: 5,709,084.76
Step by Step Solution
- Step 1: Write the proportion equation
7,400,237.74 : 10,212,281.28 = 4,137,036.90 : x - Step 2: Convert to fraction form
7,400,237.74/10,212,281.28 = 4,137,036.90/x - Step 3: Cross multiply
7,400,237.74x = 10,212,281.28 × 4,137,036.90 - Step 4: Simplify right side
7,400,237.74x = 42,248,584,488,539.23 - Step 5: Solve for x
x = 42,248,584,488,539.23/7,400,237.74 - Step 6: Final answer
x = 5,709,084.76
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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.