Finding the Fourth Proportional to 750,583,626.40, 1,124,894,901.68 and 418,577,387.12
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Solution
The fourth proportional to 750,583,626.40, 1,124,894,901.68 and 418,577,387.12 is: 627,319,264.86
Step by Step Solution
- Step 1: Write the proportion equation
750,583,626.40 : 1,124,894,901.68 = 418,577,387.12 : x - Step 2: Convert to fraction form
750,583,626.40/1,124,894,901.68 = 418,577,387.12/x - Step 3: Cross multiply
750,583,626.40x = 1,124,894,901.68 × 418,577,387.12 - Step 4: Simplify right side
750,583,626.40x = 470,855,568,729,823,744 - Step 5: Solve for x
x = 470,855,568,729,823,744/750,583,626.40 - Step 6: Final answer
x = 627,319,264.86
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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.