Finding the Fourth Proportional to 420,663,156.30, 630,993,886.35 and 395,064,532.68
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Solution
The fourth proportional to 420,663,156.30, 630,993,886.35 and 395,064,532.68 is: 592,596,002.53
Step by Step Solution
- Step 1: Write the proportion equation
420,663,156.30 : 630,993,886.35 = 395,064,532.68 : x - Step 2: Convert to fraction form
420,663,156.30/630,993,886.35 = 395,064,532.68/x - Step 3: Cross multiply
420,663,156.30x = 630,993,886.35 × 395,064,532.68 - Step 4: Simplify right side
420,663,156.30x = 249,283,304,834,799,808 - Step 5: Solve for x
x = 249,283,304,834,799,808/420,663,156.30 - Step 6: Final answer
x = 592,596,002.53
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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.