Home / 511,272,023.20-766,908,034.80-317,402,346.40

Finding the Fourth Proportional to 511,272,023.20, 766,908,034.80 and 317,402,346.40

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Solution

The fourth proportional to 511,272,023.20, 766,908,034.80 and 317,402,346.40 is: 476,103,519.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,272,023.20 : 766,908,034.80 = 317,402,346.40 : x
  2. Step 2: Convert to fraction form
    511,272,023.20/766,908,034.80 = 317,402,346.40/x
  3. Step 3: Cross multiply
    511,272,023.20x = 766,908,034.80 × 317,402,346.40
  4. Step 4: Simplify right side
    511,272,023.20x = 243,418,409,718,532,832
  5. Step 5: Solve for x
    x = 243,418,409,718,532,832/511,272,023.20
  6. Step 6: Final answer
    x = 476,103,519.60

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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.