Finding the Fourth Proportional to 679,785,193.32, 938,049,906.99 and 382,368,223.50
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Solution
The fourth proportional to 679,785,193.32, 938,049,906.99 and 382,368,223.50 is: 527,637,965.66
Step by Step Solution
- Step 1: Write the proportion equation
679,785,193.32 : 938,049,906.99 = 382,368,223.50 : x - Step 2: Convert to fraction form
679,785,193.32/938,049,906.99 = 382,368,223.50/x - Step 3: Cross multiply
679,785,193.32x = 938,049,906.99 × 382,368,223.50 - Step 4: Simplify right side
679,785,193.32x = 358,680,476,490,106,560 - Step 5: Solve for x
x = 358,680,476,490,106,560/679,785,193.32 - Step 6: Final answer
x = 527,637,965.66
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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.