Finding the Fourth Proportional to 805,950,935.91, 1,209,153,151.98 and 288,454,947.75
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Solution
The fourth proportional to 805,950,935.91, 1,209,153,151.98 and 288,454,947.75 is: 432,763,576.21
Step by Step Solution
- Step 1: Write the proportion equation
805,950,935.91 : 1,209,153,151.98 = 288,454,947.75 : x - Step 2: Convert to fraction form
805,950,935.91/1,209,153,151.98 = 288,454,947.75/x - Step 3: Cross multiply
805,950,935.91x = 1,209,153,151.98 × 288,454,947.75 - Step 4: Simplify right side
805,950,935.91x = 348,786,209,276,138,688 - Step 5: Solve for x
x = 348,786,209,276,138,688/805,950,935.91 - Step 6: Final answer
x = 432,763,576.21
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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.