Home / 291,128,278,527.90-436,714,374,681.36-86,905,341,020.88

Finding the Fourth Proportional to 291,128,278,527.90, 436,714,374,681.36 and 86,905,341,020.88

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Solution

The fourth proportional to 291,128,278,527.90, 436,714,374,681.36 and 86,905,341,020.88 is: 130,364,565,930.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,128,278,527.90 : 436,714,374,681.36 = 86,905,341,020.88 : x
  2. Step 2: Convert to fraction form
    291,128,278,527.90/436,714,374,681.36 = 86,905,341,020.88/x
  3. Step 3: Cross multiply
    291,128,278,527.90x = 436,714,374,681.36 × 86,905,341,020.88
  4. Step 4: Simplify right side
    291,128,278,527.90x = 37,952,811,660,403,955,204,096
  5. Step 5: Solve for x
    x = 37,952,811,660,403,955,204,096/291,128,278,527.90
  6. Step 6: Final answer
    x = 130,364,565,930.57

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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.