Finding the Fourth Proportional to 946,637,420.08, 1,306,410,102.84 and 528,959,844.40
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Solution
The fourth proportional to 946,637,420.08, 1,306,410,102.84 and 528,959,844.40 is: 729,992,782.94
Step by Step Solution
- Step 1: Write the proportion equation
946,637,420.08 : 1,306,410,102.84 = 528,959,844.40 : x - Step 2: Convert to fraction form
946,637,420.08/1,306,410,102.84 = 528,959,844.40/x - Step 3: Cross multiply
946,637,420.08x = 1,306,410,102.84 × 528,959,844.40 - Step 4: Simplify right side
946,637,420.08x = 691,038,484,720,834,304 - Step 5: Solve for x
x = 691,038,484,720,834,304/946,637,420.08 - Step 6: Final answer
x = 729,992,782.94
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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.