Finding the Fourth Proportional to 211,424,562.99, 291,762,317.07 and 118,603,077.93
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Solution
The fourth proportional to 211,424,562.99, 291,762,317.07 and 118,603,077.93 is: 163,670,239.35
Step by Step Solution
- Step 1: Write the proportion equation
211,424,562.99 : 291,762,317.07 = 118,603,077.93 : x - Step 2: Convert to fraction form
211,424,562.99/291,762,317.07 = 118,603,077.93/x - Step 3: Cross multiply
211,424,562.99x = 291,762,317.07 × 118,603,077.93 - Step 4: Simplify right side
211,424,562.99x = 34,603,908,828,490,580 - Step 5: Solve for x
x = 34,603,908,828,490,580/211,424,562.99 - Step 6: Final answer
x = 163,670,239.35
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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.