Finding the Fourth Proportional to 1,380,605,831.93, 2,071,199,594.74 and 447,855,848.41
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Solution
The fourth proportional to 1,380,605,831.93, 2,071,199,594.74 and 447,855,848.41 is: 671,878,120.66
Step by Step Solution
- Step 1: Write the proportion equation
1,380,605,831.93 : 2,071,199,594.74 = 447,855,848.41 : x - Step 2: Convert to fraction form
1,380,605,831.93/2,071,199,594.74 = 447,855,848.41/x - Step 3: Cross multiply
1,380,605,831.93x = 2,071,199,594.74 × 447,855,848.41 - Step 4: Simplify right side
1,380,605,831.93x = 927,598,851,722,567,168 - Step 5: Solve for x
x = 927,598,851,722,567,168/1,380,605,831.93 - Step 6: Final answer
x = 671,878,120.66
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.