Finding the Fourth Proportional to 1,270,637,865.17, 1,753,522,831.47 and 706,146,537.08
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Solution
The fourth proportional to 1,270,637,865.17, 1,753,522,831.47 and 706,146,537.08 is: 974,505,883.28
Step by Step Solution
- Step 1: Write the proportion equation
1,270,637,865.17 : 1,753,522,831.47 = 706,146,537.08 : x - Step 2: Convert to fraction form
1,270,637,865.17/1,753,522,831.47 = 706,146,537.08/x - Step 3: Cross multiply
1,270,637,865.17x = 1,753,522,831.47 × 706,146,537.08 - Step 4: Simplify right side
1,270,637,865.17x = 1,238,244,075,136,299,008 - Step 5: Solve for x
x = 1,238,244,075,136,299,008/1,270,637,865.17 - Step 6: Final answer
x = 974,505,883.28
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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.