Finding the Fourth Proportional to 70,982,433.84, 97,956,053.95 and 38,387,385.84
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Solution
The fourth proportional to 70,982,433.84, 97,956,053.95 and 38,387,385.84 is: 52,974,752.13
Step by Step Solution
- Step 1: Write the proportion equation
70,982,433.84 : 97,956,053.95 = 38,387,385.84 : x - Step 2: Convert to fraction form
70,982,433.84/97,956,053.95 = 38,387,385.84/x - Step 3: Cross multiply
70,982,433.84x = 97,956,053.95 × 38,387,385.84 - Step 4: Simplify right side
70,982,433.84x = 3,760,276,838,685,887.50 - Step 5: Solve for x
x = 3,760,276,838,685,887.50/70,982,433.84 - Step 6: Final answer
x = 52,974,752.13
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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.