Finding the Fourth Proportional to 654,587,306.78, 903,349,616.50 and 357,248,631.99
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Solution
The fourth proportional to 654,587,306.78, 903,349,616.50 and 357,248,631.99 is: 493,013,554.28
Step by Step Solution
- Step 1: Write the proportion equation
654,587,306.78 : 903,349,616.50 = 357,248,631.99 : x - Step 2: Convert to fraction form
654,587,306.78/903,349,616.50 = 357,248,631.99/x - Step 3: Cross multiply
654,587,306.78x = 903,349,616.50 × 357,248,631.99 - Step 4: Simplify right side
654,587,306.78x = 322,720,414,702,068,032 - Step 5: Solve for x
x = 322,720,414,702,068,032/654,587,306.78 - Step 6: Final answer
x = 493,013,554.28
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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.