Finding the Fourth Proportional to 885,742,925.30, 1,328,614,387.95 and 516,899,251.70
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Solution
The fourth proportional to 885,742,925.30, 1,328,614,387.95 and 516,899,251.70 is: 775,348,877.55
Step by Step Solution
- Step 1: Write the proportion equation
885,742,925.30 : 1,328,614,387.95 = 516,899,251.70 : x - Step 2: Convert to fraction form
885,742,925.30/1,328,614,387.95 = 516,899,251.70/x - Step 3: Cross multiply
885,742,925.30x = 1,328,614,387.95 × 516,899,251.70 - Step 4: Simplify right side
885,742,925.30x = 686,759,782,929,208,448 - Step 5: Solve for x
x = 686,759,782,929,208,448/885,742,925.30 - Step 6: Final answer
x = 775,348,877.55
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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.