Finding the Fourth Proportional to 868,756,624.64, 1,199,270,605.44 and 516,446,670.08
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Solution
The fourth proportional to 868,756,624.64, 1,199,270,605.44 and 516,446,670.08 is: 712,926,144.26
Step by Step Solution
- Step 1: Write the proportion equation
868,756,624.64 : 1,199,270,605.44 = 516,446,670.08 : x - Step 2: Convert to fraction form
868,756,624.64/1,199,270,605.44 = 516,446,670.08/x - Step 3: Cross multiply
868,756,624.64x = 1,199,270,605.44 × 516,446,670.08 - Step 4: Simplify right side
868,756,624.64x = 619,359,310,704,313,600 - Step 5: Solve for x
x = 619,359,310,704,313,600/868,756,624.64 - Step 6: Final answer
x = 712,926,144.26
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.