Finding the Fourth Proportional to 19,963,323.80, 29,944,985.70 and 7,179,215.30
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Solution
The fourth proportional to 19,963,323.80, 29,944,985.70 and 7,179,215.30 is: 10,768,822.95
Step by Step Solution
- Step 1: Write the proportion equation
19,963,323.80 : 29,944,985.70 = 7,179,215.30 : x - Step 2: Convert to fraction form
19,963,323.80/29,944,985.70 = 7,179,215.30/x - Step 3: Cross multiply
19,963,323.80x = 29,944,985.70 × 7,179,215.30 - Step 4: Simplify right side
19,963,323.80x = 214,981,499,495,721.19 - Step 5: Solve for x
x = 214,981,499,495,721.19/19,963,323.80 - Step 6: Final answer
x = 10,768,822.95
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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.