Home / 288,586,429.36-398,238,599.25-156,424,588.30

Finding the Fourth Proportional to 288,586,429.36, 398,238,599.25 and 156,424,588.30

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Solution

The fourth proportional to 288,586,429.36, 398,238,599.25 and 156,424,588.30 is: 215,860,146.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,586,429.36 : 398,238,599.25 = 156,424,588.30 : x
  2. Step 2: Convert to fraction form
    288,586,429.36/398,238,599.25 = 156,424,588.30/x
  3. Step 3: Cross multiply
    288,586,429.36x = 398,238,599.25 × 156,424,588.30
  4. Step 4: Simplify right side
    288,586,429.36x = 62,294,308,932,849,944
  5. Step 5: Solve for x
    x = 62,294,308,932,849,944/288,586,429.36
  6. Step 6: Final answer
    x = 215,860,146.55

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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.