Home / 91,614,158.40-137,421,237.60-87,135,182.40

Finding the Fourth Proportional to 91,614,158.40, 137,421,237.60 and 87,135,182.40

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Solution

The fourth proportional to 91,614,158.40, 137,421,237.60 and 87,135,182.40 is: 130,702,773.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,614,158.40 : 137,421,237.60 = 87,135,182.40 : x
  2. Step 2: Convert to fraction form
    91,614,158.40/137,421,237.60 = 87,135,182.40/x
  3. Step 3: Cross multiply
    91,614,158.40x = 137,421,237.60 × 87,135,182.40
  4. Step 4: Simplify right side
    91,614,158.40x = 11,974,224,603,909,738
  5. Step 5: Solve for x
    x = 11,974,224,603,909,738/91,614,158.40
  6. Step 6: Final answer
    x = 130,702,773.60

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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.