Finding the Fourth Proportional to 63,762,973.99, 87,970,883.18 and 38,653,134.13
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Solution
The fourth proportional to 63,762,973.99, 87,970,883.18 and 38,653,134.13 is: 53,327,976.00
Step by Step Solution
- Step 1: Write the proportion equation
63,762,973.99 : 87,970,883.18 = 38,653,134.13 : x - Step 2: Convert to fraction form
63,762,973.99/87,970,883.18 = 38,653,134.13/x - Step 3: Cross multiply
63,762,973.99x = 87,970,883.18 × 38,653,134.13 - Step 4: Simplify right side
63,762,973.99x = 3,400,350,346,677,907.50 - Step 5: Solve for x
x = 3,400,350,346,677,907.50/63,762,973.99 - Step 6: Final answer
x = 53,327,976.00
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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.