Home / 928,733,605.71-1,281,613,694.35-505,348,929.60

Finding the Fourth Proportional to 928,733,605.71, 1,281,613,694.35 and 505,348,929.60

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Solution

The fourth proportional to 928,733,605.71, 1,281,613,694.35 and 505,348,929.60 is: 697,360,475.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    928,733,605.71 : 1,281,613,694.35 = 505,348,929.60 : x
  2. Step 2: Convert to fraction form
    928,733,605.71/1,281,613,694.35 = 505,348,929.60/x
  3. Step 3: Cross multiply
    928,733,605.71x = 1,281,613,694.35 × 505,348,929.60
  4. Step 4: Simplify right side
    928,733,605.71x = 647,662,108,591,539,328
  5. Step 5: Solve for x
    x = 647,662,108,591,539,328/928,733,605.71
  6. Step 6: Final answer
    x = 697,360,475.18

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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.