Home / 138,851,329.46-191,616,699.78-76,127,275.49

Finding the Fourth Proportional to 138,851,329.46, 191,616,699.78 and 76,127,275.49

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Solution

The fourth proportional to 138,851,329.46, 191,616,699.78 and 76,127,275.49 is: 105,056,662.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,851,329.46 : 191,616,699.78 = 76,127,275.49 : x
  2. Step 2: Convert to fraction form
    138,851,329.46/191,616,699.78 = 76,127,275.49/x
  3. Step 3: Cross multiply
    138,851,329.46x = 191,616,699.78 × 76,127,275.49
  4. Step 4: Simplify right side
    138,851,329.46x = 14,587,257,291,678,598
  5. Step 5: Solve for x
    x = 14,587,257,291,678,598/138,851,329.46
  6. Step 6: Final answer
    x = 105,056,662.76

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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.