Home / 291,100,663,218.84-436,659,890,417.85-99,870,018,440.26

Finding the Fourth Proportional to 291,100,663,218.84, 436,659,890,417.85 and 99,870,018,440.26

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Solution

The fourth proportional to 291,100,663,218.84, 436,659,890,417.85 and 99,870,018,440.26 is: 149,808,079,534.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,100,663,218.84 : 436,659,890,417.85 = 99,870,018,440.26 : x
  2. Step 2: Convert to fraction form
    291,100,663,218.84/436,659,890,417.85 = 99,870,018,440.26/x
  3. Step 3: Cross multiply
    291,100,663,218.84x = 436,659,890,417.85 × 99,870,018,440.26
  4. Step 4: Simplify right side
    291,100,663,218.84x = 43,609,231,308,152,589,254,656
  5. Step 5: Solve for x
    x = 43,609,231,308,152,589,254,656/291,100,663,218.84
  6. Step 6: Final answer
    x = 149,808,079,534.91

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1.5x scale

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.