Home / 920,201,215.70-1,380,301,823.55-531,824,132.90

Finding the Fourth Proportional to 920,201,215.70, 1,380,301,823.55 and 531,824,132.90

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Solution

The fourth proportional to 920,201,215.70, 1,380,301,823.55 and 531,824,132.90 is: 797,736,199.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,201,215.70 : 1,380,301,823.55 = 531,824,132.90 : x
  2. Step 2: Convert to fraction form
    920,201,215.70/1,380,301,823.55 = 531,824,132.90/x
  3. Step 3: Cross multiply
    920,201,215.70x = 1,380,301,823.55 × 531,824,132.90
  4. Step 4: Simplify right side
    920,201,215.70x = 734,077,820,449,767,552
  5. Step 5: Solve for x
    x = 734,077,820,449,767,552/920,201,215.70
  6. Step 6: Final answer
    x = 797,736,199.35

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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.