Finding the Fourth Proportional to 478,553,677.30, 717,830,515.95 and 409,678,923.70
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Solution
The fourth proportional to 478,553,677.30, 717,830,515.95 and 409,678,923.70 is: 614,518,385.55
Step by Step Solution
- Step 1: Write the proportion equation
478,553,677.30 : 717,830,515.95 = 409,678,923.70 : x - Step 2: Convert to fraction form
478,553,677.30/717,830,515.95 = 409,678,923.70/x - Step 3: Cross multiply
478,553,677.30x = 717,830,515.95 × 409,678,923.70 - Step 4: Simplify right side
478,553,677.30x = 294,080,033,173,411,712 - Step 5: Solve for x
x = 294,080,033,173,411,712/478,553,677.30 - Step 6: Final answer
x = 614,518,385.55
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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.