Finding the Fourth Proportional to 260,554,075.76, 390,843,683.46 and 85,673,237.99
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Solution
The fourth proportional to 260,554,075.76, 390,843,683.46 and 85,673,237.99 is: 128,513,990.08
Step by Step Solution
- Step 1: Write the proportion equation
260,554,075.76 : 390,843,683.46 = 85,673,237.99 : x - Step 2: Convert to fraction form
260,554,075.76/390,843,683.46 = 85,673,237.99/x - Step 3: Cross multiply
260,554,075.76x = 390,843,683.46 × 85,673,237.99 - Step 4: Simplify right side
260,554,075.76x = 33,484,843,908,002,588 - Step 5: Solve for x
x = 33,484,843,908,002,588/260,554,075.76 - Step 6: Final answer
x = 128,513,990.08
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.