Finding the Fourth Proportional to 439,023,537.42, 605,679,663.15 and 253,348,675.98
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Solution
The fourth proportional to 439,023,537.42, 605,679,663.15 and 253,348,675.98 is: 349,521,443.95
Step by Step Solution
- Step 1: Write the proportion equation
439,023,537.42 : 605,679,663.15 = 253,348,675.98 : x - Step 2: Convert to fraction form
439,023,537.42/605,679,663.15 = 253,348,675.98/x - Step 3: Cross multiply
439,023,537.42x = 605,679,663.15 × 253,348,675.98 - Step 4: Simplify right side
439,023,537.42x = 153,448,140,727,064,896 - Step 5: Solve for x
x = 153,448,140,727,064,896/439,023,537.42 - Step 6: Final answer
x = 349,521,443.95
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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.