Home / 1,159,888,903.85-1,739,833,355.78-393,984,007.85

Finding the Fourth Proportional to 1,159,888,903.85, 1,739,833,355.78 and 393,984,007.85

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Solution

The fourth proportional to 1,159,888,903.85, 1,739,833,355.78 and 393,984,007.85 is: 590,976,011.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,159,888,903.85 : 1,739,833,355.78 = 393,984,007.85 : x
  2. Step 2: Convert to fraction form
    1,159,888,903.85/1,739,833,355.78 = 393,984,007.85/x
  3. Step 3: Cross multiply
    1,159,888,903.85x = 1,739,833,355.78 × 393,984,007.85
  4. Step 4: Simplify right side
    1,159,888,903.85x = 685,466,518,499,349,504
  5. Step 5: Solve for x
    x = 685,466,518,499,349,504/1,159,888,903.85
  6. Step 6: Final answer
    x = 590,976,011.78

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Double scale
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1.5x scale

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.