Home / 791,172,014.40-1,186,758,021.60-518,700,974.40

Finding the Fourth Proportional to 791,172,014.40, 1,186,758,021.60 and 518,700,974.40

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Solution

The fourth proportional to 791,172,014.40, 1,186,758,021.60 and 518,700,974.40 is: 778,051,461.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    791,172,014.40 : 1,186,758,021.60 = 518,700,974.40 : x
  2. Step 2: Convert to fraction form
    791,172,014.40/1,186,758,021.60 = 518,700,974.40/x
  3. Step 3: Cross multiply
    791,172,014.40x = 1,186,758,021.60 × 518,700,974.40
  4. Step 4: Simplify right side
    791,172,014.40x = 615,572,542,180,936,192
  5. Step 5: Solve for x
    x = 615,572,542,180,936,192/791,172,014.40
  6. Step 6: Final answer
    x = 778,051,461.60

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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.