Finding the Fourth Proportional to 492,034,185.16, 679,021,347.28 and 272,031,782.92
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Solution
The fourth proportional to 492,034,185.16, 679,021,347.28 and 272,031,782.92 is: 375,411,695.59
Step by Step Solution
- Step 1: Write the proportion equation
492,034,185.16 : 679,021,347.28 = 272,031,782.92 : x - Step 2: Convert to fraction form
492,034,185.16/679,021,347.28 = 272,031,782.92/x - Step 3: Cross multiply
492,034,185.16x = 679,021,347.28 × 272,031,782.92 - Step 4: Simplify right side
492,034,185.16x = 184,715,387,736,563,648 - Step 5: Solve for x
x = 184,715,387,736,563,648/492,034,185.16 - Step 6: Final answer
x = 375,411,695.59
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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.