Home / 85,544,002.80-128,316,004.20-39,485,782.80

Finding the Fourth Proportional to 85,544,002.80, 128,316,004.20 and 39,485,782.80

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Solution

The fourth proportional to 85,544,002.80, 128,316,004.20 and 39,485,782.80 is: 59,228,674.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,544,002.80 : 128,316,004.20 = 39,485,782.80 : x
  2. Step 2: Convert to fraction form
    85,544,002.80/128,316,004.20 = 39,485,782.80/x
  3. Step 3: Cross multiply
    85,544,002.80x = 128,316,004.20 × 39,485,782.80
  4. Step 4: Simplify right side
    85,544,002.80x = 5,066,657,871,605,087
  5. Step 5: Solve for x
    x = 5,066,657,871,605,087/85,544,002.80
  6. Step 6: Final answer
    x = 59,228,674.20

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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.