Finding the Fourth Proportional to 555,636,803.65, 766,708,107.97 and 317,497,389.66
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Solution
The fourth proportional to 555,636,803.65, 766,708,107.97 and 317,497,389.66 is: 438,106,009.74
Step by Step Solution
- Step 1: Write the proportion equation
555,636,803.65 : 766,708,107.97 = 317,497,389.66 : x - Step 2: Convert to fraction form
555,636,803.65/766,708,107.97 = 317,497,389.66/x - Step 3: Cross multiply
555,636,803.65x = 766,708,107.97 × 317,497,389.66 - Step 4: Simplify right side
555,636,803.65x = 243,427,822,912,315,072 - Step 5: Solve for x
x = 243,427,822,912,315,072/555,636,803.65 - Step 6: Final answer
x = 438,106,009.74
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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.