Home / 100,038,767.82-138,050,529.12-55,386,726

Finding the Fourth Proportional to 100,038,767.82, 138,050,529.12 and 55,386,726

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Solution

The fourth proportional to 100,038,767.82, 138,050,529.12 and 55,386,726 is: 76,432,037.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,038,767.82 : 138,050,529.12 = 55,386,726 : x
  2. Step 2: Convert to fraction form
    100,038,767.82/138,050,529.12 = 55,386,726/x
  3. Step 3: Cross multiply
    100,038,767.82x = 138,050,529.12 × 55,386,726
  4. Step 4: Simplify right side
    100,038,767.82x = 7,646,166,830,524,461
  5. Step 5: Solve for x
    x = 7,646,166,830,524,461/100,038,767.82
  6. Step 6: Final answer
    x = 76,432,037.27

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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.