Finding the Fourth Proportional to 709,239,643.20, 1,063,859,464.80 and 437,141,851.20
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Solution
The fourth proportional to 709,239,643.20, 1,063,859,464.80 and 437,141,851.20 is: 655,712,776.80
Step by Step Solution
- Step 1: Write the proportion equation
709,239,643.20 : 1,063,859,464.80 = 437,141,851.20 : x - Step 2: Convert to fraction form
709,239,643.20/1,063,859,464.80 = 437,141,851.20/x - Step 3: Cross multiply
709,239,643.20x = 1,063,859,464.80 × 437,141,851.20 - Step 4: Simplify right side
709,239,643.20x = 465,057,495,859,313,216 - Step 5: Solve for x
x = 465,057,495,859,313,216/709,239,643.20 - Step 6: Final answer
x = 655,712,776.80
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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.