Home / 689,905,029.15-1,034,857,543.73-553,856,133.15

Finding the Fourth Proportional to 689,905,029.15, 1,034,857,543.73 and 553,856,133.15

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Solution

The fourth proportional to 689,905,029.15, 1,034,857,543.73 and 553,856,133.15 is: 830,784,199.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,905,029.15 : 1,034,857,543.73 = 553,856,133.15 : x
  2. Step 2: Convert to fraction form
    689,905,029.15/1,034,857,543.73 = 553,856,133.15/x
  3. Step 3: Cross multiply
    689,905,029.15x = 1,034,857,543.73 × 553,856,133.15
  4. Step 4: Simplify right side
    689,905,029.15x = 573,162,197,531,404,800
  5. Step 5: Solve for x
    x = 573,162,197,531,404,800/689,905,029.15
  6. Step 6: Final answer
    x = 830,784,199.73

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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.