Finding the Fourth Proportional to 1,418,409,974.80, 2,125,823,371.80 and 689,829,878.80
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Solution
The fourth proportional to 1,418,409,974.80, 2,125,823,371.80 and 689,829,878.80 is: 1,033,873,495.66
Step by Step Solution
- Step 1: Write the proportion equation
1,418,409,974.80 : 2,125,823,371.80 = 689,829,878.80 : x - Step 2: Convert to fraction form
1,418,409,974.80/2,125,823,371.80 = 689,829,878.80/x - Step 3: Cross multiply
1,418,409,974.80x = 2,125,823,371.80 × 689,829,878.80 - Step 4: Simplify right side
1,418,409,974.80x = 1,466,456,478,919,001,088 - Step 5: Solve for x
x = 1,466,456,478,919,001,088/1,418,409,974.80 - Step 6: Final answer
x = 1,033,873,495.66
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.