Home / 503,939,386.80-755,909,080.20-140,433,742.80

Finding the Fourth Proportional to 503,939,386.80, 755,909,080.20 and 140,433,742.80

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Solution

The fourth proportional to 503,939,386.80, 755,909,080.20 and 140,433,742.80 is: 210,650,614.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,939,386.80 : 755,909,080.20 = 140,433,742.80 : x
  2. Step 2: Convert to fraction form
    503,939,386.80/755,909,080.20 = 140,433,742.80/x
  3. Step 3: Cross multiply
    503,939,386.80x = 755,909,080.20 × 140,433,742.80
  4. Step 4: Simplify right side
    503,939,386.80x = 106,155,141,348,991,392
  5. Step 5: Solve for x
    x = 106,155,141,348,991,392/503,939,386.80
  6. Step 6: Final answer
    x = 210,650,614.20

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Double scale
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Similar ratio
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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.