Finding the Fourth Proportional to 628,671,030.84, 861,283,495.37 and 605,107,962.36
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Solution
The fourth proportional to 628,671,030.84, 861,283,495.37 and 605,107,962.36 is: 829,001,934.77
Step by Step Solution
- Step 1: Write the proportion equation
628,671,030.84 : 861,283,495.37 = 605,107,962.36 : x - Step 2: Convert to fraction form
628,671,030.84/861,283,495.37 = 605,107,962.36/x - Step 3: Cross multiply
628,671,030.84x = 861,283,495.37 × 605,107,962.36 - Step 4: Simplify right side
628,671,030.84x = 521,169,500,897,639,232 - Step 5: Solve for x
x = 521,169,500,897,639,232/628,671,030.84 - Step 6: Final answer
x = 829,001,934.77
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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.