Finding the Fourth Proportional to 1,153,607,432.80, 1,730,411,171.08 and 280,202,916.20
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Solution
The fourth proportional to 1,153,607,432.80, 1,730,411,171.08 and 280,202,916.20 is: 420,304,379.61
Step by Step Solution
- Step 1: Write the proportion equation
1,153,607,432.80 : 1,730,411,171.08 = 280,202,916.20 : x - Step 2: Convert to fraction form
1,153,607,432.80/1,730,411,171.08 = 280,202,916.20/x - Step 3: Cross multiply
1,153,607,432.80x = 1,730,411,171.08 × 280,202,916.20 - Step 4: Simplify right side
1,153,607,432.80x = 484,866,256,361,673,088 - Step 5: Solve for x
x = 484,866,256,361,673,088/1,153,607,432.80 - Step 6: Final answer
x = 420,304,379.61
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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.