Home / 72,801,747.46-100,399,873.60-56,908,931.91

Finding the Fourth Proportional to 72,801,747.46, 100,399,873.60 and 56,908,931.91

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Solution

The fourth proportional to 72,801,747.46, 100,399,873.60 and 56,908,931.91 is: 78,482,313.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,801,747.46 : 100,399,873.60 = 56,908,931.91 : x
  2. Step 2: Convert to fraction form
    72,801,747.46/100,399,873.60 = 56,908,931.91/x
  3. Step 3: Cross multiply
    72,801,747.46x = 100,399,873.60 × 56,908,931.91
  4. Step 4: Simplify right side
    72,801,747.46x = 5,713,649,569,688,463
  5. Step 5: Solve for x
    x = 5,713,649,569,688,463/72,801,747.46
  6. Step 6: Final answer
    x = 78,482,313.54

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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.