Home / 86,611,537.40-129,946,310.89-28,321,903.49

Finding the Fourth Proportional to 86,611,537.40, 129,946,310.89 and 28,321,903.49

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Solution

The fourth proportional to 86,611,537.40, 129,946,310.89 and 28,321,903.49 is: 42,492,339.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,611,537.40 : 129,946,310.89 = 28,321,903.49 : x
  2. Step 2: Convert to fraction form
    86,611,537.40/129,946,310.89 = 28,321,903.49/x
  3. Step 3: Cross multiply
    86,611,537.40x = 129,946,310.89 × 28,321,903.49
  4. Step 4: Simplify right side
    86,611,537.40x = 3,680,326,875,187,579.50
  5. Step 5: Solve for x
    x = 3,680,326,875,187,579.50/86,611,537.40
  6. Step 6: Final answer
    x = 42,492,339.77

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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.