Home / 521,577,999.20-782,461,477.20-262,140,312.80

Finding the Fourth Proportional to 521,577,999.20, 782,461,477.20 and 262,140,312.80

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Solution

The fourth proportional to 521,577,999.20, 782,461,477.20 and 262,140,312.80 is: 393,257,953.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,577,999.20 : 782,461,477.20 = 262,140,312.80 : x
  2. Step 2: Convert to fraction form
    521,577,999.20/782,461,477.20 = 262,140,312.80/x
  3. Step 3: Cross multiply
    521,577,999.20x = 782,461,477.20 × 262,140,312.80
  4. Step 4: Simplify right side
    521,577,999.20x = 205,114,696,387,158,080
  5. Step 5: Solve for x
    x = 205,114,696,387,158,080/521,577,999.20
  6. Step 6: Final answer
    x = 393,257,953.18

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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.