Finding the Fourth Proportional to 1,520,739,023.36, 2,098,260,160.12 and 860,689,281.92
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Solution
The fourth proportional to 1,520,739,023.36, 2,098,260,160.12 and 860,689,281.92 is: 1,187,547,634.90
Step by Step Solution
- Step 1: Write the proportion equation
1,520,739,023.36 : 2,098,260,160.12 = 860,689,281.92 : x - Step 2: Convert to fraction form
1,520,739,023.36/2,098,260,160.12 = 860,689,281.92/x - Step 3: Cross multiply
1,520,739,023.36x = 2,098,260,160.12 × 860,689,281.92 - Step 4: Simplify right side
1,520,739,023.36x = 1,805,950,030,495,026,944 - Step 5: Solve for x
x = 1,805,950,030,495,026,944/1,520,739,023.36 - Step 6: Final answer
x = 1,187,547,634.90
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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.