Home / 651,655,009.20-977,388,035.40-191,545,201.20

Finding the Fourth Proportional to 651,655,009.20, 977,388,035.40 and 191,545,201.20

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Solution

The fourth proportional to 651,655,009.20, 977,388,035.40 and 191,545,201.20 is: 287,290,031.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,655,009.20 : 977,388,035.40 = 191,545,201.20 : x
  2. Step 2: Convert to fraction form
    651,655,009.20/977,388,035.40 = 191,545,201.20/x
  3. Step 3: Cross multiply
    651,655,009.20x = 977,388,035.40 × 191,545,201.20
  4. Step 4: Simplify right side
    651,655,009.20x = 187,213,987,891,165,696
  5. Step 5: Solve for x
    x = 187,213,987,891,165,696/651,655,009.20
  6. Step 6: Final answer
    x = 287,290,031.15

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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.