Finding the Fourth Proportional to 438,565,816.18, 657,842,525.13 and 106,575,266.26
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Solution
The fourth proportional to 438,565,816.18, 657,842,525.13 and 106,575,266.26 is: 159,861,392.95
Step by Step Solution
- Step 1: Write the proportion equation
438,565,816.18 : 657,842,525.13 = 106,575,266.26 : x - Step 2: Convert to fraction form
438,565,816.18/657,842,525.13 = 106,575,266.26/x - Step 3: Cross multiply
438,565,816.18x = 657,842,525.13 × 106,575,266.26 - Step 4: Simplify right side
438,565,816.18x = 70,109,742,272,880,496 - Step 5: Solve for x
x = 70,109,742,272,880,496/438,565,816.18 - Step 6: Final answer
x = 159,861,392.95
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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.