Finding the Fourth Proportional to 427,506,075.74, 589,955,920.98 and 231,931,588.70
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Solution
The fourth proportional to 427,506,075.74, 589,955,920.98 and 231,931,588.70 is: 320,064,255.88
Step by Step Solution
- Step 1: Write the proportion equation
427,506,075.74 : 589,955,920.98 = 231,931,588.70 : x - Step 2: Convert to fraction form
427,506,075.74/589,955,920.98 = 231,931,588.70/x - Step 3: Cross multiply
427,506,075.74x = 589,955,920.98 × 231,931,588.70 - Step 4: Simplify right side
427,506,075.74x = 136,829,414,012,913,280 - Step 5: Solve for x
x = 136,829,414,012,913,280/427,506,075.74 - Step 6: Final answer
x = 320,064,255.88
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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.