Home / 56,789,438.40-85,184,157.60-53,430,206.40

Finding the Fourth Proportional to 56,789,438.40, 85,184,157.60 and 53,430,206.40

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Solution

The fourth proportional to 56,789,438.40, 85,184,157.60 and 53,430,206.40 is: 80,145,309.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,789,438.40 : 85,184,157.60 = 53,430,206.40 : x
  2. Step 2: Convert to fraction form
    56,789,438.40/85,184,157.60 = 53,430,206.40/x
  3. Step 3: Cross multiply
    56,789,438.40x = 85,184,157.60 × 53,430,206.40
  4. Step 4: Simplify right side
    56,789,438.40x = 4,551,407,122,578,128
  5. Step 5: Solve for x
    x = 4,551,407,122,578,128/56,789,438.40
  6. Step 6: Final answer
    x = 80,145,309.60

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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.