Finding the Fourth Proportional to 537,088,021.80, 805,963,808.70 and 213,938,197.80
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Solution
The fourth proportional to 537,088,021.80, 805,963,808.70 and 213,938,197.80 is: 321,039,452.99
Step by Step Solution
- Step 1: Write the proportion equation
537,088,021.80 : 805,963,808.70 = 213,938,197.80 : x - Step 2: Convert to fraction form
537,088,021.80/805,963,808.70 = 213,938,197.80/x - Step 3: Cross multiply
537,088,021.80x = 805,963,808.70 × 213,938,197.80 - Step 4: Simplify right side
537,088,021.80x = 172,426,444,725,301,984 - Step 5: Solve for x
x = 172,426,444,725,301,984/537,088,021.80 - Step 6: Final answer
x = 321,039,452.99
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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.