Finding the Fourth Proportional to 628,671,031.84, 861,283,496.74 and 605,107,963.36
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Solution
The fourth proportional to 628,671,031.84, 861,283,496.74 and 605,107,963.36 is: 829,001,936.14
Step by Step Solution
- Step 1: Write the proportion equation
628,671,031.84 : 861,283,496.74 = 605,107,963.36 : x - Step 2: Convert to fraction form
628,671,031.84/861,283,496.74 = 605,107,963.36/x - Step 3: Cross multiply
628,671,031.84x = 861,283,496.74 × 605,107,963.36 - Step 4: Simplify right side
628,671,031.84x = 521,169,502,587,920,640 - Step 5: Solve for x
x = 521,169,502,587,920,640/628,671,031.84 - Step 6: Final answer
x = 829,001,936.14
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.