Finding the Fourth Proportional to 626,465,313.70, 939,697,970.55 and 263,668,257.70
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Solution
The fourth proportional to 626,465,313.70, 939,697,970.55 and 263,668,257.70 is: 395,502,386.55
Step by Step Solution
- Step 1: Write the proportion equation
626,465,313.70 : 939,697,970.55 = 263,668,257.70 : x - Step 2: Convert to fraction form
626,465,313.70/939,697,970.55 = 263,668,257.70/x - Step 3: Cross multiply
626,465,313.70x = 939,697,970.55 × 263,668,257.70 - Step 4: Simplify right side
626,465,313.70x = 247,768,526,659,144,384 - Step 5: Solve for x
x = 247,768,526,659,144,384/626,465,313.70 - Step 6: Final answer
x = 395,502,386.55
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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.