Home / 909,331,920.88-1,254,875,690.54-507,441,455.80

Finding the Fourth Proportional to 909,331,920.88, 1,254,875,690.54 and 507,441,455.80

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Solution

The fourth proportional to 909,331,920.88, 1,254,875,690.54 and 507,441,455.80 is: 700,267,891.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,331,920.88 : 1,254,875,690.54 = 507,441,455.80 : x
  2. Step 2: Convert to fraction form
    909,331,920.88/1,254,875,690.54 = 507,441,455.80/x
  3. Step 3: Cross multiply
    909,331,920.88x = 1,254,875,690.54 × 507,441,455.80
  4. Step 4: Simplify right side
    909,331,920.88x = 636,775,947,255,647,872
  5. Step 5: Solve for x
    x = 636,775,947,255,647,872/909,331,920.88
  6. Step 6: Final answer
    x = 700,267,891.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.