Finding the Fourth Proportional to 387,279,904.06, 581,033,831.11 and 124,959,533.99
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Solution
The fourth proportional to 387,279,904.06, 581,033,831.11 and 124,959,533.99 is: 187,476,076.11
Step by Step Solution
- Step 1: Write the proportion equation
387,279,904.06 : 581,033,831.11 = 124,959,533.99 : x - Step 2: Convert to fraction form
387,279,904.06/581,033,831.11 = 124,959,533.99/x - Step 3: Cross multiply
387,279,904.06x = 581,033,831.11 × 124,959,533.99 - Step 4: Simplify right side
387,279,904.06x = 72,605,716,767,929,968 - Step 5: Solve for x
x = 72,605,716,767,929,968/387,279,904.06 - Step 6: Final answer
x = 187,476,076.11
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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.