Finding the Fourth Proportional to 888,996,946.90, 1,333,495,420.35 and 839,112,351.70
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Solution
The fourth proportional to 888,996,946.90, 1,333,495,420.35 and 839,112,351.70 is: 1,258,668,527.55
Step by Step Solution
- Step 1: Write the proportion equation
888,996,946.90 : 1,333,495,420.35 = 839,112,351.70 : x - Step 2: Convert to fraction form
888,996,946.90/1,333,495,420.35 = 839,112,351.70/x - Step 3: Cross multiply
888,996,946.90x = 1,333,495,420.35 × 839,112,351.70 - Step 4: Simplify right side
888,996,946.90x = 1,118,952,478,151,068,544 - Step 5: Solve for x
x = 1,118,952,478,151,068,544/888,996,946.90 - Step 6: Final answer
x = 1,258,668,527.55
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Double scale
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1.5x scale
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.