Home / 20,412,885.60-30,619,328.40-9,075,477.60

Finding the Fourth Proportional to 20,412,885.60, 30,619,328.40 and 9,075,477.60

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Solution

The fourth proportional to 20,412,885.60, 30,619,328.40 and 9,075,477.60 is: 13,613,216.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,412,885.60 : 30,619,328.40 = 9,075,477.60 : x
  2. Step 2: Convert to fraction form
    20,412,885.60/30,619,328.40 = 9,075,477.60/x
  3. Step 3: Cross multiply
    20,412,885.60x = 30,619,328.40 × 9,075,477.60
  4. Step 4: Simplify right side
    20,412,885.60x = 277,885,029,021,243.81
  5. Step 5: Solve for x
    x = 277,885,029,021,243.81/20,412,885.60
  6. Step 6: Final answer
    x = 13,613,216.40

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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.