Home / 291,100,663,243.80-436,659,890,455.17-99,870,018,465.15

Finding the Fourth Proportional to 291,100,663,243.80, 436,659,890,455.17 and 99,870,018,465.15

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Solution

The fourth proportional to 291,100,663,243.80, 436,659,890,455.17 and 99,870,018,465.15 is: 149,808,079,572.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,100,663,243.80 : 436,659,890,455.17 = 99,870,018,465.15 : x
  2. Step 2: Convert to fraction form
    291,100,663,243.80/436,659,890,455.17 = 99,870,018,465.15/x
  3. Step 3: Cross multiply
    291,100,663,243.80x = 436,659,890,455.17 × 99,870,018,465.15
  4. Step 4: Simplify right side
    291,100,663,243.80x = 43,609,231,322,748,196,749,312
  5. Step 5: Solve for x
    x = 43,609,231,322,748,196,749,312/291,100,663,243.80
  6. Step 6: Final answer
    x = 149,808,079,572.20

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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.