Finding the Fourth Proportional to 984,573,752.55, 1,476,863,130.34 and 402,307,998.09
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Solution
The fourth proportional to 984,573,752.55, 1,476,863,130.34 and 402,307,998.09 is: 603,463,019.28
Step by Step Solution
- Step 1: Write the proportion equation
984,573,752.55 : 1,476,863,130.34 = 402,307,998.09 : x - Step 2: Convert to fraction form
984,573,752.55/1,476,863,130.34 = 402,307,998.09/x - Step 3: Cross multiply
984,573,752.55x = 1,476,863,130.34 × 402,307,998.09 - Step 4: Simplify right side
984,573,752.55x = 594,153,849,420,498,944 - Step 5: Solve for x
x = 594,153,849,420,498,944/984,573,752.55 - Step 6: Final answer
x = 603,463,019.28
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1.5x scale
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.