Finding the Fourth Proportional to 170,829,729.84, 256,653,387.78 and 109,538,970.99
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Solution
The fourth proportional to 170,829,729.84, 256,653,387.78 and 109,538,970.99 is: 164,570,581.62
Step by Step Solution
- Step 1: Write the proportion equation
170,829,729.84 : 256,653,387.78 = 109,538,970.99 : x - Step 2: Convert to fraction form
170,829,729.84/256,653,387.78 = 109,538,970.99/x - Step 3: Cross multiply
170,829,729.84x = 256,653,387.78 × 109,538,970.99 - Step 4: Simplify right side
170,829,729.84x = 28,113,547,998,518,640 - Step 5: Solve for x
x = 28,113,547,998,518,640/170,829,729.84 - Step 6: Final answer
x = 164,570,581.62
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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.