Home / 619,488,919.20-929,233,378.80-434,059,312.80

Finding the Fourth Proportional to 619,488,919.20, 929,233,378.80 and 434,059,312.80

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Solution

The fourth proportional to 619,488,919.20, 929,233,378.80 and 434,059,312.80 is: 651,088,969.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,488,919.20 : 929,233,378.80 = 434,059,312.80 : x
  2. Step 2: Convert to fraction form
    619,488,919.20/929,233,378.80 = 434,059,312.80/x
  3. Step 3: Cross multiply
    619,488,919.20x = 929,233,378.80 × 434,059,312.80
  4. Step 4: Simplify right side
    619,488,919.20x = 403,342,401,832,750,080
  5. Step 5: Solve for x
    x = 403,342,401,832,750,080/619,488,919.20
  6. Step 6: Final answer
    x = 651,088,969.20

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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.