Home / 747,698,979.60-1,121,548,469.40-661,605,537.60

Finding the Fourth Proportional to 747,698,979.60, 1,121,548,469.40 and 661,605,537.60

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Solution

The fourth proportional to 747,698,979.60, 1,121,548,469.40 and 661,605,537.60 is: 992,408,306.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,698,979.60 : 1,121,548,469.40 = 661,605,537.60 : x
  2. Step 2: Convert to fraction form
    747,698,979.60/1,121,548,469.40 = 661,605,537.60/x
  3. Step 3: Cross multiply
    747,698,979.60x = 1,121,548,469.40 × 661,605,537.60
  4. Step 4: Simplify right side
    747,698,979.60x = 742,022,678,041,844,224
  5. Step 5: Solve for x
    x = 742,022,678,041,844,224/747,698,979.60
  6. Step 6: Final answer
    x = 992,408,306.40

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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.