Home / 1,005,347,189.81-1,387,391,890.07-553,277,206.61

Finding the Fourth Proportional to 1,005,347,189.81, 1,387,391,890.07 and 553,277,206.61

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Solution

The fourth proportional to 1,005,347,189.81, 1,387,391,890.07 and 553,277,206.61 is: 763,529,571.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,005,347,189.81 : 1,387,391,890.07 = 553,277,206.61 : x
  2. Step 2: Convert to fraction form
    1,005,347,189.81/1,387,391,890.07 = 553,277,206.61/x
  3. Step 3: Cross multiply
    1,005,347,189.81x = 1,387,391,890.07 × 553,277,206.61
  4. Step 4: Simplify right side
    1,005,347,189.81x = 767,612,309,401,594,496
  5. Step 5: Solve for x
    x = 767,612,309,401,594,496/1,005,347,189.81
  6. Step 6: Final answer
    x = 763,529,571.85

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.