Home / 208,565,470.41-288,059,225.19-137,356,671.81

Finding the Fourth Proportional to 208,565,470.41, 288,059,225.19 and 137,356,671.81

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Solution

The fourth proportional to 208,565,470.41, 288,059,225.19 and 137,356,671.81 is: 189,709,525.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,565,470.41 : 288,059,225.19 = 137,356,671.81 : x
  2. Step 2: Convert to fraction form
    208,565,470.41/288,059,225.19 = 137,356,671.81/x
  3. Step 3: Cross multiply
    208,565,470.41x = 288,059,225.19 × 137,356,671.81
  4. Step 4: Simplify right side
    208,565,470.41x = 39,566,856,455,864,064
  5. Step 5: Solve for x
    x = 39,566,856,455,864,064/208,565,470.41
  6. Step 6: Final answer
    x = 189,709,525.64

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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.