Finding the Fourth Proportional to 613,031,121.81, 919,903,567.95 and 258,483,164.64
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Solution
The fourth proportional to 613,031,121.81, 919,903,567.95 and 258,483,164.64 is: 387,875,226.80
Step by Step Solution
- Step 1: Write the proportion equation
613,031,121.81 : 919,903,567.95 = 258,483,164.64 : x - Step 2: Convert to fraction form
613,031,121.81/919,903,567.95 = 258,483,164.64/x - Step 3: Cross multiply
613,031,121.81x = 919,903,567.95 × 258,483,164.64 - Step 4: Simplify right side
613,031,121.81x = 237,779,585,407,343,264 - Step 5: Solve for x
x = 237,779,585,407,343,264/613,031,121.81 - Step 6: Final answer
x = 387,875,226.80
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.