Home / 411,800,920.40-617,700,858.96-105,093,040.16

Finding the Fourth Proportional to 411,800,920.40, 617,700,858.96 and 105,093,040.16

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Solution

The fourth proportional to 411,800,920.40, 617,700,858.96 and 105,093,040.16 is: 157,639,427.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,800,920.40 : 617,700,858.96 = 105,093,040.16 : x
  2. Step 2: Convert to fraction form
    411,800,920.40/617,700,858.96 = 105,093,040.16/x
  3. Step 3: Cross multiply
    411,800,920.40x = 617,700,858.96 × 105,093,040.16
  4. Step 4: Simplify right side
    411,800,920.40x = 64,916,061,174,461,280
  5. Step 5: Solve for x
    x = 64,916,061,174,461,280/411,800,920.40
  6. Step 6: Final answer
    x = 157,639,427.11

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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.