Home / 100,503,365.59-138,698,814.24-55,849,170.93

Finding the Fourth Proportional to 100,503,365.59, 138,698,814.24 and 55,849,170.93

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Solution

The fourth proportional to 100,503,365.59, 138,698,814.24 and 55,849,170.93 is: 77,074,172.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,503,365.59 : 138,698,814.24 = 55,849,170.93 : x
  2. Step 2: Convert to fraction form
    100,503,365.59/138,698,814.24 = 55,849,170.93/x
  3. Step 3: Cross multiply
    100,503,365.59x = 138,698,814.24 × 55,849,170.93
  4. Step 4: Simplify right side
    100,503,365.59x = 7,746,213,784,278,079
  5. Step 5: Solve for x
    x = 7,746,213,784,278,079/100,503,365.59
  6. Step 6: Final answer
    x = 77,074,172.98

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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.