Home / 705,107,266.32-972,022,502.52-492,754,809.72

Finding the Fourth Proportional to 705,107,266.32, 972,022,502.52 and 492,754,809.72

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Solution

The fourth proportional to 705,107,266.32, 972,022,502.52 and 492,754,809.72 is: 679,284,962.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,107,266.32 : 972,022,502.52 = 492,754,809.72 : x
  2. Step 2: Convert to fraction form
    705,107,266.32/972,022,502.52 = 492,754,809.72/x
  3. Step 3: Cross multiply
    705,107,266.32x = 972,022,502.52 × 492,754,809.72
  4. Step 4: Simplify right side
    705,107,266.32x = 478,968,763,272,800,832
  5. Step 5: Solve for x
    x = 478,968,763,272,800,832/705,107,266.32
  6. Step 6: Final answer
    x = 679,284,962.94

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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.