Home / 100,503,393.12-138,698,852.16-55,849,198.37

Finding the Fourth Proportional to 100,503,393.12, 138,698,852.16 and 55,849,198.37

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Solution

The fourth proportional to 100,503,393.12, 138,698,852.16 and 55,849,198.37 is: 77,074,210.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,503,393.12 : 138,698,852.16 = 55,849,198.37 : x
  2. Step 2: Convert to fraction form
    100,503,393.12/138,698,852.16 = 55,849,198.37/x
  3. Step 3: Cross multiply
    100,503,393.12x = 138,698,852.16 × 55,849,198.37
  4. Step 4: Simplify right side
    100,503,393.12x = 7,746,219,707,281,649
  5. Step 5: Solve for x
    x = 7,746,219,707,281,649/100,503,393.12
  6. Step 6: Final answer
    x = 77,074,210.80

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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.