Home / 415,883,145.53-623,920,389.98-139,571,026.40

Finding the Fourth Proportional to 415,883,145.53, 623,920,389.98 and 139,571,026.40

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Solution

The fourth proportional to 415,883,145.53, 623,920,389.98 and 139,571,026.40 is: 209,388,647.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,883,145.53 : 623,920,389.98 = 139,571,026.40 : x
  2. Step 2: Convert to fraction form
    415,883,145.53/623,920,389.98 = 139,571,026.40/x
  3. Step 3: Cross multiply
    415,883,145.53x = 623,920,389.98 × 139,571,026.40
  4. Step 4: Simplify right side
    415,883,145.53x = 87,081,209,221,396,880
  5. Step 5: Solve for x
    x = 87,081,209,221,396,880/415,883,145.53
  6. Step 6: Final answer
    x = 209,388,647.17

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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.