Home / 39,715,627,215.24-54,808,173,242.10-21,651,155,581.32

Finding the Fourth Proportional to 39,715,627,215.24, 54,808,173,242.10 and 21,651,155,581.32

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Solution

The fourth proportional to 39,715,627,215.24, 54,808,173,242.10 and 21,651,155,581.32 is: 29,878,925,984.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,715,627,215.24 : 54,808,173,242.10 = 21,651,155,581.32 : x
  2. Step 2: Convert to fraction form
    39,715,627,215.24/54,808,173,242.10 = 21,651,155,581.32/x
  3. Step 3: Cross multiply
    39,715,627,215.24x = 54,808,173,242.10 × 21,651,155,581.32
  4. Step 4: Simplify right side
    39,715,627,215.24x = 1,186,660,285,992,646,737,920
  5. Step 5: Solve for x
    x = 1,186,660,285,992,646,737,920/39,715,627,215.24
  6. Step 6: Final answer
    x = 29,878,925,984.51

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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.