Finding the Fourth Proportional to 725,157,802.30, 1,087,736,703.45 and 626,522,352.70
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Solution
The fourth proportional to 725,157,802.30, 1,087,736,703.45 and 626,522,352.70 is: 939,783,529.05
Step by Step Solution
- Step 1: Write the proportion equation
725,157,802.30 : 1,087,736,703.45 = 626,522,352.70 : x - Step 2: Convert to fraction form
725,157,802.30/1,087,736,703.45 = 626,522,352.70/x - Step 3: Cross multiply
725,157,802.30x = 1,087,736,703.45 × 626,522,352.70 - Step 4: Simplify right side
725,157,802.30x = 681,491,358,563,636,352 - Step 5: Solve for x
x = 681,491,358,563,636,352/725,157,802.30 - Step 6: Final answer
x = 939,783,529.05
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Double scale
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Similar ratio
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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.