Finding the Fourth Proportional to 153,294,966.49, 211,519,149.05 and 86,303,506.93
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Solution
The fourth proportional to 153,294,966.49, 211,519,149.05 and 86,303,506.93 is: 119,083,129.50
Step by Step Solution
- Step 1: Write the proportion equation
153,294,966.49 : 211,519,149.05 = 86,303,506.93 : x - Step 2: Convert to fraction form
153,294,966.49/211,519,149.05 = 86,303,506.93/x - Step 3: Cross multiply
153,294,966.49x = 211,519,149.05 × 86,303,506.93 - Step 4: Simplify right side
153,294,966.49x = 18,254,844,346,184,824 - Step 5: Solve for x
x = 18,254,844,346,184,824/153,294,966.49 - Step 6: Final answer
x = 119,083,129.50
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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.