Finding the Fourth Proportional to 527,706,149.19, 727,931,926.87 and 329,122,878.98
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Solution
The fourth proportional to 527,706,149.19, 727,931,926.87 and 329,122,878.98 is: 454,000,871.20
Step by Step Solution
- Step 1: Write the proportion equation
527,706,149.19 : 727,931,926.87 = 329,122,878.98 : x - Step 2: Convert to fraction form
527,706,149.19/727,931,926.87 = 329,122,878.98/x - Step 3: Cross multiply
527,706,149.19x = 727,931,926.87 × 329,122,878.98 - Step 4: Simplify right side
527,706,149.19x = 239,579,051,467,627,968 - Step 5: Solve for x
x = 239,579,051,467,627,968/527,706,149.19 - Step 6: Final answer
x = 454,000,871.20
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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.