Home / 72,765,973.80-109,148,960.70-34,502,221.80

Finding the Fourth Proportional to 72,765,973.80, 109,148,960.70 and 34,502,221.80

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Solution

The fourth proportional to 72,765,973.80, 109,148,960.70 and 34,502,221.80 is: 51,753,332.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,765,973.80 : 109,148,960.70 = 34,502,221.80 : x
  2. Step 2: Convert to fraction form
    72,765,973.80/109,148,960.70 = 34,502,221.80/x
  3. Step 3: Cross multiply
    72,765,973.80x = 109,148,960.70 × 34,502,221.80
  4. Step 4: Simplify right side
    72,765,973.80x = 3,765,881,651,310,883
  5. Step 5: Solve for x
    x = 3,765,881,651,310,883/72,765,973.80
  6. Step 6: Final answer
    x = 51,753,332.70

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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.