Home / 999,948,296.32-1,379,939,686.08-553,918,491.52

Finding the Fourth Proportional to 999,948,296.32, 1,379,939,686.08 and 553,918,491.52

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Solution

The fourth proportional to 999,948,296.32, 1,379,939,686.08 and 553,918,491.52 is: 764,413,632.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    999,948,296.32 : 1,379,939,686.08 = 553,918,491.52 : x
  2. Step 2: Convert to fraction form
    999,948,296.32/1,379,939,686.08 = 553,918,491.52/x
  3. Step 3: Cross multiply
    999,948,296.32x = 1,379,939,686.08 × 553,918,491.52
  4. Step 4: Simplify right side
    999,948,296.32x = 764,374,109,302,015,872
  5. Step 5: Solve for x
    x = 764,374,109,302,015,872/999,948,296.32
  6. Step 6: Final answer
    x = 764,413,632.30

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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.