Finding the Fourth Proportional to 1,067,119,946.80, 1,600,679,920.20 and 885,721,418.80
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Solution
The fourth proportional to 1,067,119,946.80, 1,600,679,920.20 and 885,721,418.80 is: 1,328,582,128.20
Step by Step Solution
- Step 1: Write the proportion equation
1,067,119,946.80 : 1,600,679,920.20 = 885,721,418.80 : x - Step 2: Convert to fraction form
1,067,119,946.80/1,600,679,920.20 = 885,721,418.80/x - Step 3: Cross multiply
1,067,119,946.80x = 1,600,679,920.20 × 885,721,418.80 - Step 4: Simplify right side
1,067,119,946.80x = 1,417,756,489,964,214,784 - Step 5: Solve for x
x = 1,417,756,489,964,214,784/1,067,119,946.80 - Step 6: Final answer
x = 1,328,582,128.20
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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.