Finding the Fourth Proportional to 977,785,227.36, 1,349,369,143.92 and 537,763,626.72
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Solution
The fourth proportional to 977,785,227.36, 1,349,369,143.92 and 537,763,626.72 is: 742,127,845.99
Step by Step Solution
- Step 1: Write the proportion equation
977,785,227.36 : 1,349,369,143.92 = 537,763,626.72 : x - Step 2: Convert to fraction form
977,785,227.36/1,349,369,143.92 = 537,763,626.72/x - Step 3: Cross multiply
977,785,227.36x = 1,349,369,143.92 × 537,763,626.72 - Step 4: Simplify right side
977,785,227.36x = 725,641,644,618,480,896 - Step 5: Solve for x
x = 725,641,644,618,480,896/977,785,227.36 - Step 6: Final answer
x = 742,127,845.99
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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.