Home / 291,087,300.60-436,637,949.30-86,622,046.20

Finding the Fourth Proportional to 291,087,300.60, 436,637,949.30 and 86,622,046.20

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Solution

The fourth proportional to 291,087,300.60, 436,637,949.30 and 86,622,046.20 is: 129,935,151.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,087,300.60 : 436,637,949.30 = 86,622,046.20 : x
  2. Step 2: Convert to fraction form
    291,087,300.60/436,637,949.30 = 86,622,046.20/x
  3. Step 3: Cross multiply
    291,087,300.60x = 436,637,949.30 × 86,622,046.20
  4. Step 4: Simplify right side
    291,087,300.60x = 37,822,472,616,937,856
  5. Step 5: Solve for x
    x = 37,822,472,616,937,856/291,087,300.60
  6. Step 6: Final answer
    x = 129,935,151.89

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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.