Home / 288,515,050.91-398,151,107.47-156,356,040.59

Finding the Fourth Proportional to 288,515,050.91, 398,151,107.47 and 156,356,040.59

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Solution

The fourth proportional to 288,515,050.91, 398,151,107.47 and 156,356,040.59 is: 215,771,518.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,515,050.91 : 398,151,107.47 = 156,356,040.59 : x
  2. Step 2: Convert to fraction form
    288,515,050.91/398,151,107.47 = 156,356,040.59/x
  3. Step 3: Cross multiply
    288,515,050.91x = 398,151,107.47 × 156,356,040.59
  4. Step 4: Simplify right side
    288,515,050.91x = 62,253,330,720,230,528
  5. Step 5: Solve for x
    x = 62,253,330,720,230,528/288,515,050.91
  6. Step 6: Final answer
    x = 215,771,518.76

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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.