Home / 124,680,009.80-187,037,729.40-38,409,420.80

Finding the Fourth Proportional to 124,680,009.80, 187,037,729.40 and 38,409,420.80

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Solution

The fourth proportional to 124,680,009.80, 187,037,729.40 and 38,409,420.80 is: 57,619,588.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,680,009.80 : 187,037,729.40 = 38,409,420.80 : x
  2. Step 2: Convert to fraction form
    124,680,009.80/187,037,729.40 = 38,409,420.80/x
  3. Step 3: Cross multiply
    124,680,009.80x = 187,037,729.40 × 38,409,420.80
  4. Step 4: Simplify right side
    124,680,009.80x = 7,184,010,854,001,131
  5. Step 5: Solve for x
    x = 7,184,010,854,001,131/124,680,009.80
  6. Step 6: Final answer
    x = 57,619,588.46

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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.