Finding the Fourth Proportional to 399,771,291.04, 551,462,802.88 and 232,489,235.68
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Solution
The fourth proportional to 399,771,291.04, 551,462,802.88 and 232,489,235.68 is: 320,706,284.87
Step by Step Solution
- Step 1: Write the proportion equation
399,771,291.04 : 551,462,802.88 = 232,489,235.68 : x - Step 2: Convert to fraction form
399,771,291.04/551,462,802.88 = 232,489,235.68/x - Step 3: Cross multiply
399,771,291.04x = 551,462,802.88 × 232,489,235.68 - Step 4: Simplify right side
399,771,291.04x = 128,209,165,547,521,712 - Step 5: Solve for x
x = 128,209,165,547,521,712/399,771,291.04 - Step 6: Final answer
x = 320,706,284.87
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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.