Home / 670,733,821.40-1,005,502,368.90-261,694,837.40

Finding the Fourth Proportional to 670,733,821.40, 1,005,502,368.90 and 261,694,837.40

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Solution

The fourth proportional to 670,733,821.40, 1,005,502,368.90 and 261,694,837.40 is: 392,308,797.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,733,821.40 : 1,005,502,368.90 = 261,694,837.40 : x
  2. Step 2: Convert to fraction form
    670,733,821.40/1,005,502,368.90 = 261,694,837.40/x
  3. Step 3: Cross multiply
    670,733,821.40x = 1,005,502,368.90 × 261,694,837.40
  4. Step 4: Simplify right side
    670,733,821.40x = 263,134,778,934,600,320
  5. Step 5: Solve for x
    x = 263,134,778,934,600,320/670,733,821.40
  6. Step 6: Final answer
    x = 392,308,797.53

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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.