Home / 999,948,297.32-1,379,939,687.46-553,918,492.52

Finding the Fourth Proportional to 999,948,297.32, 1,379,939,687.46 and 553,918,492.52

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Solution

The fourth proportional to 999,948,297.32, 1,379,939,687.46 and 553,918,492.52 is: 764,413,633.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    999,948,297.32 : 1,379,939,687.46 = 553,918,492.52 : x
  2. Step 2: Convert to fraction form
    999,948,297.32/1,379,939,687.46 = 553,918,492.52/x
  3. Step 3: Cross multiply
    999,948,297.32x = 1,379,939,687.46 × 553,918,492.52
  4. Step 4: Simplify right side
    999,948,297.32x = 764,374,111,446,363,136
  5. Step 5: Solve for x
    x = 764,374,111,446,363,136/999,948,297.32
  6. Step 6: Final answer
    x = 764,413,633.68

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1.5x scale

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.