Home / 138,662,878.98-191,352,420.22-76,781,888.94

Finding the Fourth Proportional to 138,662,878.98, 191,352,420.22 and 76,781,888.94

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Solution

The fourth proportional to 138,662,878.98, 191,352,420.22 and 76,781,888.94 is: 105,957,703.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,662,878.98 : 191,352,420.22 = 76,781,888.94 : x
  2. Step 2: Convert to fraction form
    138,662,878.98/191,352,420.22 = 76,781,888.94/x
  3. Step 3: Cross multiply
    138,662,878.98x = 191,352,420.22 × 76,781,888.94
  4. Step 4: Simplify right side
    138,662,878.98x = 14,692,400,277,732,250
  5. Step 5: Solve for x
    x = 14,692,400,277,732,250/138,662,878.98
  6. Step 6: Final answer
    x = 105,957,703.93

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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.