Home / 138,634,285.86-191,328,149.12-76,754,625.03

Finding the Fourth Proportional to 138,634,285.86, 191,328,149.12 and 76,754,625.03

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Solution

The fourth proportional to 138,634,285.86, 191,328,149.12 and 76,754,625.03 is: 105,928,488.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,634,285.86 : 191,328,149.12 = 76,754,625.03 : x
  2. Step 2: Convert to fraction form
    138,634,285.86/191,328,149.12 = 76,754,625.03/x
  3. Step 3: Cross multiply
    138,634,285.86x = 191,328,149.12 × 76,754,625.03
  4. Step 4: Simplify right side
    138,634,285.86x = 14,685,320,343,005,752
  5. Step 5: Solve for x
    x = 14,685,320,343,005,752/138,634,285.86
  6. Step 6: Final answer
    x = 105,928,488.41

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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.