Home / 72,801,748.96-100,399,875.66-56,908,933.40

Finding the Fourth Proportional to 72,801,748.96, 100,399,875.66 and 56,908,933.40

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Solution

The fourth proportional to 72,801,748.96, 100,399,875.66 and 56,908,933.40 is: 78,482,315.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,801,748.96 : 100,399,875.66 = 56,908,933.40 : x
  2. Step 2: Convert to fraction form
    72,801,748.96/100,399,875.66 = 56,908,933.40/x
  3. Step 3: Cross multiply
    72,801,748.96x = 100,399,875.66 × 56,908,933.40
  4. Step 4: Simplify right side
    72,801,748.96x = 5,713,649,837,303,221
  5. Step 5: Solve for x
    x = 5,713,649,837,303,221/72,801,748.96
  6. Step 6: Final answer
    x = 78,482,315.59

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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.