Home / 137,781,014.40-206,671,521.60-77,188,867.20

Finding the Fourth Proportional to 137,781,014.40, 206,671,521.60 and 77,188,867.20

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Solution

The fourth proportional to 137,781,014.40, 206,671,521.60 and 77,188,867.20 is: 115,783,300.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,781,014.40 : 206,671,521.60 = 77,188,867.20 : x
  2. Step 2: Convert to fraction form
    137,781,014.40/206,671,521.60 = 77,188,867.20/x
  3. Step 3: Cross multiply
    137,781,014.40x = 206,671,521.60 × 77,188,867.20
  4. Step 4: Simplify right side
    137,781,014.40x = 15,952,740,634,804,332
  5. Step 5: Solve for x
    x = 15,952,740,634,804,332/137,781,014.40
  6. Step 6: Final answer
    x = 115,783,300.80

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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.