Home / 1,407,987,125.13-1,943,120,440.58-930,848,507.25

Finding the Fourth Proportional to 1,407,987,125.13, 1,943,120,440.58 and 930,848,507.25

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Solution

The fourth proportional to 1,407,987,125.13, 1,943,120,440.58 and 930,848,507.25 is: 1,284,635,867.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,407,987,125.13 : 1,943,120,440.58 = 930,848,507.25 : x
  2. Step 2: Convert to fraction form
    1,407,987,125.13/1,943,120,440.58 = 930,848,507.25/x
  3. Step 3: Cross multiply
    1,407,987,125.13x = 1,943,120,440.58 × 930,848,507.25
  4. Step 4: Simplify right side
    1,407,987,125.13x = 1,808,750,761,520,855,296
  5. Step 5: Solve for x
    x = 1,808,750,761,520,855,296/1,407,987,125.13
  6. Step 6: Final answer
    x = 1,284,635,867.22

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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.