Home / 72,029,745,021.36-99,368,453,149.92-43,474,272,178.80

Finding the Fourth Proportional to 72,029,745,021.36, 99,368,453,149.92 and 43,474,272,178.80

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Solution

The fourth proportional to 72,029,745,021.36, 99,368,453,149.92 and 43,474,272,178.80 is: 59,974,822,581.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,029,745,021.36 : 99,368,453,149.92 = 43,474,272,178.80 : x
  2. Step 2: Convert to fraction form
    72,029,745,021.36/99,368,453,149.92 = 43,474,272,178.80/x
  3. Step 3: Cross multiply
    72,029,745,021.36x = 99,368,453,149.92 × 43,474,272,178.80
  4. Step 4: Simplify right side
    72,029,745,021.36x = 4,319,971,178,225,958,649,856
  5. Step 5: Solve for x
    x = 4,319,971,178,225,958,649,856/72,029,745,021.36
  6. Step 6: Final answer
    x = 59,974,822,581.21

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1.5x scale

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.