Finding the Fourth Proportional to 383,473,417.20, 575,210,125.80 and 319,700,497.20
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Solution
The fourth proportional to 383,473,417.20, 575,210,125.80 and 319,700,497.20 is: 479,550,745.80
Step by Step Solution
- Step 1: Write the proportion equation
383,473,417.20 : 575,210,125.80 = 319,700,497.20 : x - Step 2: Convert to fraction form
383,473,417.20/575,210,125.80 = 319,700,497.20/x - Step 3: Cross multiply
383,473,417.20x = 575,210,125.80 × 319,700,497.20 - Step 4: Simplify right side
383,473,417.20x = 183,894,963,212,734,528 - Step 5: Solve for x
x = 183,894,963,212,734,528/383,473,417.20 - Step 6: Final answer
x = 479,550,745.80
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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.