Finding the Fourth Proportional to 367,905,258.16, 551,652,630.12 and 122,128,419.28
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Solution
The fourth proportional to 367,905,258.16, 551,652,630.12 and 122,128,419.28 is: 183,124,492.55
Step by Step Solution
- Step 1: Write the proportion equation
367,905,258.16 : 551,652,630.12 = 122,128,419.28 : x - Step 2: Convert to fraction form
367,905,258.16/551,652,630.12 = 122,128,419.28/x - Step 3: Cross multiply
367,905,258.16x = 551,652,630.12 × 122,128,419.28 - Step 4: Simplify right side
367,905,258.16x = 67,372,463,708,210,120 - Step 5: Solve for x
x = 67,372,463,708,210,120/367,905,258.16 - Step 6: Final answer
x = 183,124,492.55
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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.