Home / 291,128,278,529.40-436,714,374,683.61-86,905,341,022.38

Finding the Fourth Proportional to 291,128,278,529.40, 436,714,374,683.61 and 86,905,341,022.38

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Solution

The fourth proportional to 291,128,278,529.40, 436,714,374,683.61 and 86,905,341,022.38 is: 130,364,565,932.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,128,278,529.40 : 436,714,374,683.61 = 86,905,341,022.38 : x
  2. Step 2: Convert to fraction form
    291,128,278,529.40/436,714,374,683.61 = 86,905,341,022.38/x
  3. Step 3: Cross multiply
    291,128,278,529.40x = 436,714,374,683.61 × 86,905,341,022.38
  4. Step 4: Simplify right side
    291,128,278,529.40x = 37,952,811,661,254,560,055,296
  5. Step 5: Solve for x
    x = 37,952,811,661,254,560,055,296/291,128,278,529.40
  6. Step 6: Final answer
    x = 130,364,565,932.82

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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.