Finding the Fourth Proportional to 138,772,335.98, 191,506,048.74 and 76,038,465.15
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Solution
The fourth proportional to 138,772,335.98, 191,506,048.74 and 76,038,465.15 is: 104,933,205.24
Step by Step Solution
- Step 1: Write the proportion equation
138,772,335.98 : 191,506,048.74 = 76,038,465.15 : x - Step 2: Convert to fraction form
138,772,335.98/191,506,048.74 = 76,038,465.15/x - Step 3: Cross multiply
138,772,335.98x = 191,506,048.74 × 76,038,465.15 - Step 4: Simplify right side
138,772,335.98x = 14,561,826,013,130,694 - Step 5: Solve for x
x = 14,561,826,013,130,694/138,772,335.98 - Step 6: Final answer
x = 104,933,205.24
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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.