Home / 291,100,663,217.84-436,659,890,416.35-99,870,018,439.26

Finding the Fourth Proportional to 291,100,663,217.84, 436,659,890,416.35 and 99,870,018,439.26

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Solution

The fourth proportional to 291,100,663,217.84, 436,659,890,416.35 and 99,870,018,439.26 is: 149,808,079,533.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,100,663,217.84 : 436,659,890,416.35 = 99,870,018,439.26 : x
  2. Step 2: Convert to fraction form
    291,100,663,217.84/436,659,890,416.35 = 99,870,018,439.26/x
  3. Step 3: Cross multiply
    291,100,663,217.84x = 436,659,890,416.35 × 99,870,018,439.26
  4. Step 4: Simplify right side
    291,100,663,217.84x = 43,609,231,307,566,116,503,552
  5. Step 5: Solve for x
    x = 43,609,231,307,566,116,503,552/291,100,663,217.84
  6. Step 6: Final answer
    x = 149,808,079,533.41

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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.