Finding the Fourth Proportional to 253,512,579,831.26, 349,855,750,238.68 and 139,331,248,038.14
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Solution
The fourth proportional to 253,512,579,831.26, 349,855,750,238.68 and 139,331,248,038.14 is: 192,281,733,500.25
Step by Step Solution
- Step 1: Write the proportion equation
253,512,579,831.26 : 349,855,750,238.68 = 139,331,248,038.14 : x - Step 2: Convert to fraction form
253,512,579,831.26/349,855,750,238.68 = 139,331,248,038.14/x - Step 3: Cross multiply
253,512,579,831.26x = 349,855,750,238.68 × 139,331,248,038.14 - Step 4: Simplify right side
253,512,579,831.26x = 48,745,838,314,075,082,194,944 - Step 5: Solve for x
x = 48,745,838,314,075,082,194,944/253,512,579,831.26 - Step 6: Final answer
x = 192,281,733,500.25
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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.