Home / 119,620,838-165,076,629.72-64,616,685.68

Finding the Fourth Proportional to 119,620,838, 165,076,629.72 and 64,616,685.68

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Solution

The fourth proportional to 119,620,838, 165,076,629.72 and 64,616,685.68 is: 89,170,957.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,620,838 : 165,076,629.72 = 64,616,685.68 : x
  2. Step 2: Convert to fraction form
    119,620,838/165,076,629.72 = 64,616,685.68/x
  3. Step 3: Cross multiply
    119,620,838x = 165,076,629.72 × 64,616,685.68
  4. Step 4: Simplify right side
    119,620,838x = 10,666,704,695,730,986
  5. Step 5: Solve for x
    x = 10,666,704,695,730,986/119,620,838
  6. Step 6: Final answer
    x = 89,170,957.79

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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.