Home / 511,239,937.20-766,859,905.80-429,610,599.60

Finding the Fourth Proportional to 511,239,937.20, 766,859,905.80 and 429,610,599.60

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Solution

The fourth proportional to 511,239,937.20, 766,859,905.80 and 429,610,599.60 is: 644,415,899.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,239,937.20 : 766,859,905.80 = 429,610,599.60 : x
  2. Step 2: Convert to fraction form
    511,239,937.20/766,859,905.80 = 429,610,599.60/x
  3. Step 3: Cross multiply
    511,239,937.20x = 766,859,905.80 × 429,610,599.60
  4. Step 4: Simplify right side
    511,239,937.20x = 329,451,143,939,937,536
  5. Step 5: Solve for x
    x = 329,451,143,939,937,536/511,239,937.20
  6. Step 6: Final answer
    x = 644,415,899.40

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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.