Home / 921,622,624.40-1,382,435,266.80-376,364,158.40

Finding the Fourth Proportional to 921,622,624.40, 1,382,435,266.80 and 376,364,158.40

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Solution

The fourth proportional to 921,622,624.40, 1,382,435,266.80 and 376,364,158.40 is: 564,546,780.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,622,624.40 : 1,382,435,266.80 = 376,364,158.40 : x
  2. Step 2: Convert to fraction form
    921,622,624.40/1,382,435,266.80 = 376,364,158.40/x
  3. Step 3: Cross multiply
    921,622,624.40x = 1,382,435,266.80 × 376,364,158.40
  4. Step 4: Simplify right side
    921,622,624.40x = 520,299,085,731,661,440
  5. Step 5: Solve for x
    x = 520,299,085,731,661,440/921,622,624.40
  6. Step 6: Final answer
    x = 564,546,780.82

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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.