Home / 186,618,078.16-280,052,086.19-77,443,354.16

Finding the Fourth Proportional to 186,618,078.16, 280,052,086.19 and 77,443,354.16

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Solution

The fourth proportional to 186,618,078.16, 280,052,086.19 and 77,443,354.16 is: 116,216,891.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,618,078.16 : 280,052,086.19 = 77,443,354.16 : x
  2. Step 2: Convert to fraction form
    186,618,078.16/280,052,086.19 = 77,443,354.16/x
  3. Step 3: Cross multiply
    186,618,078.16x = 280,052,086.19 × 77,443,354.16
  4. Step 4: Simplify right side
    186,618,078.16x = 21,688,172,893,552,492
  5. Step 5: Solve for x
    x = 21,688,172,893,552,492/186,618,078.16
  6. Step 6: Final answer
    x = 116,216,891.25

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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.