Home / 776,674,182.56-1,071,810,330.72-419,441,929.16

Finding the Fourth Proportional to 776,674,182.56, 1,071,810,330.72 and 419,441,929.16

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Solution

The fourth proportional to 776,674,182.56, 1,071,810,330.72 and 419,441,929.16 is: 578,829,839.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    776,674,182.56 : 1,071,810,330.72 = 419,441,929.16 : x
  2. Step 2: Convert to fraction form
    776,674,182.56/1,071,810,330.72 = 419,441,929.16/x
  3. Step 3: Cross multiply
    776,674,182.56x = 1,071,810,330.72 × 419,441,929.16
  4. Step 4: Simplify right side
    776,674,182.56x = 449,562,192,810,814,464
  5. Step 5: Solve for x
    x = 449,562,192,810,814,464/776,674,182.56
  6. Step 6: Final answer
    x = 578,829,839.98

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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.