Finding the Fourth Proportional to 4,947,558,815.40, 7,424,878,948.52 and 1,799,767,342.12
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Solution
The fourth proportional to 4,947,558,815.40, 7,424,878,948.52 and 1,799,767,342.12 is: 2,700,939,018.48
Step by Step Solution
- Step 1: Write the proportion equation
4,947,558,815.40 : 7,424,878,948.52 = 1,799,767,342.12 : x - Step 2: Convert to fraction form
4,947,558,815.40/7,424,878,948.52 = 1,799,767,342.12/x - Step 3: Cross multiply
4,947,558,815.40x = 7,424,878,948.52 × 1,799,767,342.12 - Step 4: Simplify right side
4,947,558,815.40x = 13,363,054,650,740,580,352 - Step 5: Solve for x
x = 13,363,054,650,740,580,352/4,947,558,815.40 - Step 6: Final answer
x = 2,700,939,018.48
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.