Home / 898,307,500.65-1,237,898,478.24-686,853,917.43

Finding the Fourth Proportional to 898,307,500.65, 1,237,898,478.24 and 686,853,917.43

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Solution

The fourth proportional to 898,307,500.65, 1,237,898,478.24 and 686,853,917.43 is: 946,508,204.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,307,500.65 : 1,237,898,478.24 = 686,853,917.43 : x
  2. Step 2: Convert to fraction form
    898,307,500.65/1,237,898,478.24 = 686,853,917.43/x
  3. Step 3: Cross multiply
    898,307,500.65x = 1,237,898,478.24 × 686,853,917.43
  4. Step 4: Simplify right side
    898,307,500.65x = 850,255,419,159,779,584
  5. Step 5: Solve for x
    x = 850,255,419,159,779,584/898,307,500.65
  6. Step 6: Final answer
    x = 946,508,204.09

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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.